Featured Publications

  • High-sensitivity multichannel zero-to-ultralow field NMR with atomic magnetometer arrays

    B. Andrews, et al. PNAS Nexus 4, 6 (2025)

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  • Enhanced Reactivity at the Oil-Water Interface Accelerates the Synthesis of Zymonic Acid in Microemulsions

    B. Wallace, et al. Chem. Sci. 16, 15155 (2025).

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  • Experimental observation of a time rondeau crystal: Temporal Disorder in Spatiotemporal Order

    L. Moon, et al. Nature Physics (online) (2025)

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  • Nanoscale engineering and dynamical stabilization of mesoscopic spin textures

    K. Harkins, et al. Science Advances 11, 13, eadn9021 (2025)

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  • Room-temperature quantum sensing with photoexcited triplet electrons in organic crystals

    H. Singh, et al. Phys. Rev. Research 7, 013192 (2025)

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  • Complex 3-dimensional microscale structures for quantum sensing applications

    B. Blankenship, et al. Nano. Lett. 23, 9272 (2023)

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  • High-Field Magnetometry with Hyperpolarized Nuclear Spins

    O, Sahin, et al. Nature Comm 13, 5486 (2022)

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  • Electron induced nanoscale nuclear spin relaxation probed by hyperpolarization injection

    W. Beatrez, et al. Phys. Rev. Lett. 131, 010802 (2023)

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  • High sensitivity pressure and temperature quantum sensing in organic crystals

    H. Singh, et al. Nature Comm. (In Press) (2025)

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Our Work Has Been Featured In

Browse by Year

 2025 | 2024 | 2023 | 2022 | 2021 | Pre-2020

2025 Publications

Featured
70. Emergent Decoherence Dynamics in Doubly Disordered Spin Networks
70. Emergent Decoherence Dynamics in Doubly Disordered Spin Networks

C. M. Selco†, C. Bengs†, C. Shah, Z. Zhang, A. Ajoy [PDF].

arXiv:2511.07785

69. Discrete Time Crystal Sensing with Nuclear Spins in Diamond
69. Discrete Time Crystal Sensing with Nuclear Spins in Diamond

L. J. I. Moon†, P. M. Schindler†, R. J. Smith†, E. Druga, Z. R. Zhang, M. Bukov, A. Ajoy [PDF]
arXiv:2410.05625 — Nature Physics (accepted in principle) (2025)

68. Quantum computation of molecular geometry via many-body nuclear spin echoes
68. Quantum computation of molecular geometry via many-body nuclear spin echoes

C. Zhang†, R. G. Cortiñas†, A. H. Karamlou†, (…), C. Ramanathan, X. Mi*, C. Bengs*, A. Ajoy*, Z. K. Minev*, N. C. Rubin*, T. E. O’Brien* [PDF]
arXiv:2510.19550

See coverage by the New York Times, Google Tech Blog, Scientific American, Nature, Science News,‍ Guardian,‍ IEEE Spectrum, Reuters,Bloomberg, Financial Times, amongst 50+ other venues

67. Constructive interference at the edge of quantum ergodic dynamics
67. Constructive interference at the edge of quantum ergodic dynamics

Google Quantum AI and Collaborators [+ C. Zhang, C. Bengs, A. Ajoy] [PDF]
arXiv:2506.10191 — Nature 646, 825 (2025)

See coverage by the New York Times, Google Tech Blog, Scientific American, Nature, Science News,‍ Guardian,‍ IEEE Spectrum, Reuters,Bloomberg, Financial Times, amongst 50+ other venues

66. Experimental observation of a time rondeau crystal: Temporal Disorder in Spatiotemporal Order
66. Experimental observation of a time rondeau crystal: Temporal Disorder in Spatiotemporal Order

L. J. I. Moon†, P. M. Schindler†, Y. Sun, E. Druga, J. Knolle, R. Moessner, H. Zhao, M. Bukov, A. Ajoy [PDF]
Nature Physics (online) (2025)

See coverage by the The Hindu, Quantum Server Materials

65. High sensitivity pressure and temperature quantum sensing in organic crystals
65. High sensitivity pressure and temperature quantum sensing in organic crystals

H. Singh, N. D'Souza, J. Garrett, A. Singh, B. Blankenship, E. Druga, R. Montis, L. Tan, A. Ajoy [PDF]
arXiv:2410.10705 — Nature Comm. (In Press) (2025)

64. Continuously tracked, stable, large excursion trajectories of dipolar coupled nuclear spins
64. Continuously tracked, stable, large excursion trajectories of dipolar coupled nuclear spins

O. Sahin†, H. Al Asadi†, P. Schindler†, A. Pillai, E. Sanchez, M. Markham, M. Elo, M. McAllister, E. Druga, C. Fleckenstein, M. Bukov, A. Ajoy* [PDF]
arXiv:2206.14945 — Phys. Rev. Research (in press) (2025).
Watch the continuous tracking of stabilized spin trajectories: [Video] .

63. High-Speed, High-Memory NMR Spectrometer and Hyperpolarizer
63. High-Speed, High-Memory NMR Spectrometer and Hyperpolarizer

L. J. I. Moon†, W. Beatrez†, J. Ball, J. Mercade, M. Elo, A. Singh, E. Druga, A. Ajoy [PDF]
Journal of Magnetic Resonance 380, 107952 (2025).

62. Sensitive multichannel zero-to-ultralow field NMR with atomic magnetometer arrays
62. Sensitive multichannel zero-to-ultralow field NMR with atomic magnetometer arrays

B. Andrews†, M. Lai†, Z. Wang, N. Kato, M. Tayler, E. Druga, A. Ajoy [PDF]
arXiv:2407.00929 — PNAS Nexus 4, 6 (2025)

61. Modulator-Assisted Local Control of Quantum Battery via Zeno Effect
61. Modulator-Assisted Local Control of Quantum Battery via Zeno Effect

S. Xie, M. Sajjan, A. Ajoy, S. Kais [PDF]
arXiv:2506.18276

60. Quantum Sensing of Paramagnetic Analytes by Nanodiamonds in Levitated Microdroplets and Aqueous Solutions
60. Quantum Sensing of Paramagnetic Analytes by Nanodiamonds in Levitated Microdroplets and Aqueous Solutions

E Brown, Z. Jones, A. Sarkar, B. Wallace, A. Ajoy*, K. Wilson* [PDF]
Chem. Sci. (2025) [Edge Article]

59. Fundamental bounds on many-body spin cluster intensities
59. Fundamental bounds on many-body spin cluster intensities

C. Bengs†, C. Zhang†, A. Ajoy [PDF]
arXiv:2412.08796 — J. Chem. Phys. 162, 214108 (2025)

58. Enhanced Reactivity at the Oil-Water Interface Accelerates the Synthesis of Zymonic Acid in Microemulsions
58. Enhanced Reactivity at the Oil-Water Interface Accelerates the Synthesis of Zymonic Acid in Microemulsions

B. Wallace, M. Makhnun, R. Bachnak, P. Kim, M. Ahmed, C. Dutcher, K. Wilson*, A.Ajoy* [PDF]
Chem. Sci. 16, 15155 (2025) [Edge Article].

57. Electronic Spin Relaxation and Clustering in High-Pressure High-Temperature Synthesized Microcrystalline Diamond Particles with Reduced Nitrogen Content
57. Electronic Spin Relaxation and Clustering in High-Pressure High-Temperature Synthesized Microcrystalline Diamond Particles with Reduced Nitrogen Content

N. Nunn, S. Milikisiyants, M. Torelli, A. Healey, R. Styles, B. Johnson, J-P. Tetienne, P. Reineck, C. Long, T. Dumm, A. Dalis, H. Abe, T. Ohshima, L. Moon, E. Druga, A. Ajoy, A.I. Shames, A. Smirnov, O. Shenderova [PDF]
Journal of Physical Chemistry C 129, 7493 (2025).

56. Nanoscale engineering and dynamical stabilization of mesoscopic spin textures
56. Nanoscale engineering and dynamical stabilization of mesoscopic spin textures

K. Harkins†, C. Fleckenstein†, N. D'Souza†, P. M. Schindler†, D. Marchiori†, C. Artiaco, Q. Reynard-Feytis, U. Basumallick, W. Beatrez, A. Pillai, M. Hagn, A. Nayak, S. Breuer, X. Lv, M. McAllister, P. Reshetikhin, E. Druga, M. Bukov, A. Ajoy [PDF][SI]
arXiv:2310.05635 — Science Advances 11, 13, eadn9021 (2025)

55. Cryogenic field-cycling instrument for optical NMR hyperpolarization studies
55. Cryogenic field-cycling instrument for optical NMR hyperpolarization studies

N. D'Souza†, K. A. Harkins†, C. Selco, U. Basumallick, S. Breuer, Z. Zhang, P. Reshetikhin, M. Ho, A. Nayak, M. McAllister, E. Druga, D. Marchiori, A. Ajoy [PDF]
arXiv:2412.164715 — Journal of Magnetic Resonance 375, 107874 (2025).
Selected as the Journal Cover Article in J. Magn. Res.

54. Room-temperature quantum sensing with photoexcited triplet electrons in organic crystals
54. Room-temperature quantum sensing with photoexcited triplet electrons in organic crystals

H. Singh, N. D'Souza, K. Zhong, E. Druga, J. Oshiro, B. Blankenship, J. A. Reimer, J. D. Breeze, A. Ajoy [PDF]
arXiv:2402.13898 — Phys. Rev. Research 7, 013192 (2025)

53. Optically Detected Magnetic Resonance Imaging and Sensing Within Functionalized Additively Manufactured Microporous Structures
53. Optically Detected Magnetic Resonance Imaging and Sensing Within Functionalized Additively Manufactured Microporous Structures

B. W. Blankenship†, Y. Rho†, Z. Jones, T. Meier, R. Li, E. Druga, H. Singh, X. Xia, A. Ajoy*, C. P. Grigoropoulos* [PDF]
arXiv:2502.16434

2024 Publications

Featured
52. High-precision chemical quantum sensing in flowing monodisperse microdroplets
52. High-precision chemical quantum sensing in flowing monodisperse microdroplets

A. Sarkar†, Z. Jones†, M. Parashar, E. Druga, A. Akkiraju, S. Conti, P. Krishnamoorthi, S. Nachuri, P. Aman, M. Hashemi, N. Nunn, M. Torelli, B. Gilbert, K. R. Wilson, O. Shenderova, D. Tanjore, A. Ajoy [PDF][SI]
arXiv:2404.19313 — Science Advances 10, 50 (2024)

51. Anomalously extended Floquet prethermal lifetimes and applications to long-time quantum sensing
51. Anomalously extended Floquet prethermal lifetimes and applications to long-time quantum sensing

K. A. Harkins†, C. Selco†, C. Bengs, D. Marchiori, L. J. I. Moon, Z. R. Zhang, A. Yang, A. Singh, E. Druga, Y. Q. Song, A. Ajoy [PDF]
arXiv:2410.09028

50. Spatially Resolved Quantum Sensing with High-Density Bubble-Printed Nanodiamonds
50. Spatially Resolved Quantum Sensing with High-Density Bubble-Printed Nanodiamonds

B. Blankenship, J. Li, Z. Jones, M. Parashar, N. Zhao, H. Singh, R. Li, S. Arvin, A. Sarkar, R. Yang, T. Meier, Y. Rho, A. Ajoy*, C. Grigoropoulos* [PDF][SI]
Nano. Lett. 24, 9711 (2024)

49. Roadmap on Nanoscale Magnetic Resonance Imaging
49. Roadmap on Nanoscale Magnetic Resonance Imaging

R. Budakian, A. Finkler, A. Eichler, M. Poggio, C. Degen, S. Tabatabaei, I. Lee, C. Hammel, E. Polzik, T. Taminiau, R. Walsworth, P. London, A. Jayich, A. Ajoy, A. Pillai, J. Wrachtrup, F. Jelezko, Y. Bae, A. Heinrich, C. Ast, P. Bertet, P. Cappellaro, C. Bonato, Y. Altmann, E. Gauger [PDF]
arXiv:2312.08841 — Nanotechnology 35, 412001 (2024)

2023 Publications

Featured
48. Electron-to-nuclear spectral mapping via "Galton board" dynamic nuclear polarization
48. Electron-to-nuclear spectral mapping via "Galton board" dynamic nuclear polarization

A. Pillai, M. Elanchezhian, T. Virtanen, S. Conti, A. Ajoy* [PDF]
arXiv:2110.06826 — J. Chem. Phys. 159, 154201 (2023)
Selected as the Journal Cover Article in J. Chem. Phys.
Selected as the Editors' Featured Article in J. Chem. Phys.

47. Complex 3-dimensional microscale structures for quantum sensing applications
47. Complex 3-dimensional microscale structures for quantum sensing applications

B. Blankenship†, Z. Jones†, N. Zhao, H. Singh, A. Sarkar, R. Li, E. Suh, A. Chen, C. Grigoropoulos*, A. Ajoy* [PDF][SI]
arXiv:2307.15233 — Nano. Lett. 23, 9272 (2023)
Spotlighted by Berkeley Engineering: Researchers demonstrate new 3D printing technique for quantum sensors.

46. Electron induced nanoscale nuclear spin relaxation probed by hyperpolarization injection
46. Electron induced nanoscale nuclear spin relaxation probed by hyperpolarization injection

W. Beatrez, A. Pillai, O. Janes, D. Suter, A. Ajoy* [PDF][SI]
arXiv:2207.02827 — Phys. Rev. Lett. 131,010802 (2023).
Watch nuclear spins directly probing proximal electron relaxation: [Video 1] , [Video 2] , [Video 3] .

45. Optical and electronic spin properties of fluorescent micro- and nanodiamonds upon prolonged ultrahigh-temperature annealing
45. Optical and electronic spin properties of fluorescent micro- and nanodiamonds upon prolonged ultrahigh-temperature annealing

N. Nunn, S. Milikisiyants, M. Torelli, R. Monge, T. Delord, A. I. Shames, C. Meriles, A. Ajoy, A. I. Smirnov, O. Shenderova [PDF]
Journal of Vacuum Science & Technology B 41, 042206 (2023)
Spotlighted as a Featured article in JVST.

44. Critical prethermal discrete time crystal created by two-frequency driving
44. Critical prethermal discrete time crystal created by two-frequency driving

W. Beatrez†, C. Fleckenstein†, A. Pillai, E. Sanchez, A. Akkiraju, J. Alcala, S. Conti, P. Reshetikhin, E. Druga, M. Bukov*, A. Ajoy* [PDF]
arXiv:2201.02162 — Nature Physics 19, 407 (2023)
Watch the formation and melting of a time-crystal: [Video 1] , [Video 2] , [Video 3] .

2022 Publications

Featured
43. Rapidly enhanced spin polarization injection in an optically pumped spin ratchet
43. Rapidly enhanced spin polarization injection in an optically pumped spin ratchet

A. Sarkar, B. Blankenship, E. Druga, A. Pillai, R. Nirodi, S. Singh, A. Oddo, P. Reshetikhin, A. Ajoy* [PDF] [SI]
arXiv:2112.07223 — Phys. Rev. Applied 18, 034079 (2022).

42. High-Field Magnetometry with Hyperpolarized Nuclear Spins
42. High-Field Magnetometry with Hyperpolarized Nuclear Spins

O. Sahin, E. d. L. Sanchez, S. Conti, A. Akkiraju, P. Reshetikhin, E. Druga, A. Aggarwal, B. Gilbert, S. Bhave, A. Ajoy* [PDF] [SI]
arXiv:2112.11612 — Nature Communications 13, 5486 (2022)
Selected as Editors Highlight by Nature Communications
Spotlighted by News & Views in Nature Physics: Magnetometry goes nuclear [pdf]

41. Dual-space compressed sensing
41. Dual-space compressed sensing

X. Lv, A. Ajoy* [PDF]
arXiv:2207.07627

40. Beauty Beyond the Eye: Color Centers in Diamond Particles for Imaging and Quantum Sensing Applications
40. Beauty Beyond the Eye: Color Centers in Diamond Particles for Imaging and Quantum Sensing Applications

N. Nunn, M. Torelli, A. Ajoy, A. Smirnov, O. Shenderova [PDF]
Rev. Adv. Chem., 12, 1, (2022).

2021 Publications

Featured
39. Floquet prethermalization with lifetime exceeding 90s in a bulk hyperpolarized solid
39. Floquet prethermalization with lifetime exceeding 90s in a bulk hyperpolarized solid

W. Beatrez, O. Janes, A. Akkiraju, A. Pillai, A. Oddo, P. Reshetikhin, E. Druga, M. McAllister, M. Elo, B. Gilbert, D. Suter, A. Ajoy* [PDF]
arXiv:2104.01988 -- Phys. Rev. Lett. 127, 170603 (2021).
Selected as Editors Suggestion by PRL
Spotlighted by Physics at PRL: Delaying Thermalization in a Periodically Driven System
Spotlighted in Nature Physics: Keep the spins spinning

38. "Galton board" nuclear hyperpolarization
38. "Galton board" nuclear hyperpolarization

M. Elanchezhian, A. Pillai, T. Virtanen, A. Ajoy* [PDF]
arXiv:2110.05742

37. Low-field microwave-mediated optical hyperpolarization in optically pumped diamond
37. Low-field microwave-mediated optical hyperpolarization in optically pumped diamond

A. Ajoy, A. Sarkar, E. Druga, P. Zangara, D. Pagliero, C. A. Meriles, and J. A. Reimer [PDF]
Journal of Magnetic Resonance 331, 107021 (2021).

36. Background-free dual-mode optical and 13C magnetic resonance imaging in diamond particles
36. Background-free dual-mode optical and 13C magnetic resonance imaging in diamond particles

X. Lv, J.H. Walton, E. Druga, F. Wang, A. Aguilar, T. McKnelly, R. Nazaryan, F. L. Liu, L. Wu, O. Shenderova, D. B. Vigneron, C. A. Meriles, J. A. Reimer, A. Pines, A. Ajoy* [PDF] [SI]
arXiv:1909.08064 — Proc. Natl. Acad. Sci. USA 118, 21 (2021).
Highlight by Berkeley news: Diamonds engage both optical microscopy and MRI for better imaging,
OSA: Dual-Mode Imaging with Diamond Particles, Physics World, Tech Explorist, and by 10+ news outlets including EurekAlert!, ScienMag, Phys.org, Science Daily.

35. Magnetic field induced delocalization in hybrid electron-nuclear spin ensembles
35. Magnetic field induced delocalization in hybrid electron-nuclear spin ensembles

D. Pagliero†, P.R. Zangara†, J. Henshaw, A. Ajoy, R.H. Acosta, J. Reimer, A. Pines, C.A. Meriles [PDF]
Phys. Rev. B 103, 064310 (2021)

34. Nuclear spin temperature reversal via continuous radio-frequency driving
34. Nuclear spin temperature reversal via continuous radio-frequency driving

P.R. Zangara†, D. Pagliero†, A. Ajoy, R.H. Acosta, J.A. Reimer, C.A. Meriles [PDF]
Phys. Rev. B 103, 085205 (2021)

2020 and Earlier Publications

Featured
33. Imaging Sequences for Hyperpolarized Solids
33. Imaging Sequences for Hyperpolarized Solids

X. Lv, J. Walton, E. Druga, R. Nazaryan, H. Mao, A. Pines, A. Ajoy, J.A. Reimer [PDF]
Molecules 2021, 26(1), 133

32. High temperature annealing enhanced diamond 13C hyperpolarization at room temperature
32. High temperature annealing enhanced diamond 13C hyperpolarization at room temperature

M. Gierth, V. Krespach, A. I. Shames, P. Raghavan, E. Druga, N. Nunn, M. Torelli, R. Nirodi, S. Le, R. Zhao, A. Aguilar, X. Lv, M. Shen, C. A. Meriles, J. A. Reimer, A. Zaitsev, A. Pines, O. Shenderova, and A. Ajoy* [PDF]
arXiv:1911.03322 — Advanced Quantum Technologies 2000050 (2020) .

31. Dynamical decoupling in interacting systems: applications to signal-enhanced hyperpolarized readout
31. Dynamical decoupling in interacting systems: applications to signal-enhanced hyperpolarized readout

A. Ajoy*, R. Nirodi, A. Sarkar, P. Reshetikhin, E. Druga, A. Akkiraju, M. McAllister, G. Maineri, S. Le, A. Lin, A. M. Souza, C. A. Meriles, B. Gilbert, D. Suter, J. A. Reimer, and A. Pines [PDF]
arXiv:2008.08323

30. High-fidelity Trotter formulas for digital quantum simulation
30. High-fidelity Trotter formulas for digital quantum simulation

Y.X. Liu, J. Hines, Z. Li, A. Ajoy, and P. Cappellaro [PDF]
arXiv:1807.07664 — Phys. Rev. A (Rapid Comm.), 102, 010601(R), (2020).

29. Optically pumped spin polarization as a probe of many-body thermalization
29. Optically pumped spin polarization as a probe of many-body thermalization

D. Pagliero, P. R. Zangara, J. Henshaw, A. Ajoy, R. H. Acosta, J. A. Reimer, A. Pines, C. A. Meriles [PDF] [SI]
arXiv:2005.00647 — Science Advances 16, eaaz6986 (2020) .

28. Room temperature “Optical Nanodiamond Hyperpolarizer”: physics, design and operation
28. Room temperature “Optical Nanodiamond Hyperpolarizer”: physics, design and operation

A. Ajoy*, R. Nazaryan, E. Druga, K. Liu, A. Aguilar, B. Han, M. Gierth, J. T. Oon, B. Safvati, R. Tsang, J. H. Walton, D. Suter, C. A. Meriles, J. A. Reimer and A. Pines [PDF]
arXiv:1811.10218 — Rev. Sci. Instru. 91, 023106 (2020) .
Youtube video highlighting "Ultracompact Nanodiamond Hyperpolarizer".

27. Hyperpolarized relaxometry based nuclear T1 noise spectroscopy in hybrid diamond quantum register
27. Hyperpolarized relaxometry based nuclear T1 noise spectroscopy in hybrid diamond quantum register

A. Ajoy*, B. Safvati, R. Nazaryan, J. T. Oon, B. Han, P. Raghavan, R. Nirodi, A. Aguilar, K. Liu, X. Cai, X. Lv, E. Druga, C. Ramanathan, J. A. Reimer, C. A. Meriles, D. Suter, and A. Pines [PDF] [SI]
arXiv:1902.06204 — Nature Communications 10, 5160 (2019) .

26. 13C dynamic nuclear polarization in diamond via a microwave-free ‘integrated’ cross effect
26. 13C dynamic nuclear polarization in diamond via a microwave-free ‘integrated’ cross effect

J. Henshaw, D. Pagliero, P.R. Zangara, B. Franzoni, A. Ajoy, R. Acosta, J. Reimer, A. Pines, C. A. Meriles [PDF]
Proc. Natl. Acad. Sci. USA 116, 18334 (2019).

25. Cross-sensor feedback stabilization of an emulated quantum spin gyroscope
25. Cross-sensor feedback stabilization of an emulated quantum spin gyroscope

J.-C. Jaskula†, K. Saha†, A. Ajoy, D. J. Twitchen, M. Markham, and P. Cappellaro [PDF]
arXiv:1808.04494 — Phys. Rev. Applied 11, 054010 (2019)

24. Dynamic Hamiltonian engineering of 2D rectangular lattices in a one-dimensional ion chain
24. Dynamic Hamiltonian engineering of 2D rectangular lattices in a one-dimensional ion chain

F. Rajabi, S. Motlakunta, C.-Y. Shih, N. Kotibhaskar, Q. Quraishi, A. Ajoy, and R. Islam [PDF]
arXiv:1808.06124 — npj Quantum Information 5, 32 (2019)

23. Two-electron-spin ratchets as a platform for microwave-free dynamic nuclear polarization of arbitrary material targets
23. Two-electron-spin ratchets as a platform for microwave-free dynamic nuclear polarization of arbitrary material targets

P.R. Zangara, J. Henshaw, D. Pagliero, A. Ajoy, J. Reimer, A. Pines, C. Meriles [PDF]
arXiv:1904.08563 — Nano Letters 19, 2389 (2019)

22. Nanoscale vector DC magnetometry via ancilla assisted frequency up-conversion
22. Nanoscale vector DC magnetometry via ancilla assisted frequency up-conversion

Y. X. Liu†, A. Ajoy† and P. Cappellaro [PDF] [SI]
arXiv:1611.04691 — Phys. Rev. Lett. 122, 100501 (2019)
Spotlighted by MIT News

21. Wide dynamic range magnetic field cycler: Harnessing quantum control at low and high fields
21. Wide dynamic range magnetic field cycler: Harnessing quantum control at low and high fields

YouTube video highlighting "Wide dynamic field cycling".
YouTube video highlighting "Printing coils for NMR".
A. Ajoy*, X. Lv, E. Druga, K. Liu, B. Safvati, A. Morabe, M. Fenton, R. Nazaryan, S. Patel, T. Sjolander, J. Reimer, D Sakellariou, C. Meriles and A. Pines [PDF]
arXiv:1808.06124 — Rev. Sci. Instru. 90, 013112 (2019)

20. Dynamics of frequency-swept nuclear spin optical pumping in powdered diamond at low magnetic fields
20. Dynamics of frequency-swept nuclear spin optical pumping in powdered diamond at low magnetic fields

P.R. Zangara, S. Dhomkar, A. Ajoy, K. Liu, R. Nazaryan, D. Pagliero, D. Suter, J. Reimer, A. Pines, C. Meriles [PDF] [SI]
Proc. Natl. Acad. Sci., 1811994116, (2019).

19. Selective decoupling and Hamiltonian engineering in dipolar spin networks
19. Selective decoupling and Hamiltonian engineering in dipolar spin networks

A. Ajoy*†, U. Bissbort†, D. Poletti and P. Cappellaro [PDF] [SI]
arXiv:1710.03987 — Phys. Rev. Lett. 122, 013205 (2019)

17. Orientation independent room-temperature optical 13C hyperpolarization in powdered diamond
17. Orientation independent room-temperature optical 13C hyperpolarization in powdered diamond

A. Ajoy*, K. Liu, R. Nazaryan, X. Lv, P. Zangara, B. Safvati, G. Wang, D. Arnold, G. Li, A. Lin, P. Raghavan, E. Druga, S. Dhomkar, D. Pagliero, J. Reimer, D. Suter, C. Meriles and A.Pines [PDF] [SI]
arXiv:1807.07664 — Science Advances 4, eaar5492 (2018).
Spotlighted by Berkeley News, LBNL News, MRS Bulletin, R&D Magazine, Technology Networks, Phys.org, MRC Biomedical Picture of the Day.

16. Multi-spin-assisted optical pumping of bulk 13C nuclear spin polarization in diamond
16. Multi-spin-assisted optical pumping of bulk 13C nuclear spin polarization in diamond

D. Pagliero, K.R. Koteswara Rao, P.R. Zangara, S. Dhomkar, H.H. Wong, A. Abril, N. Aslam, A. Parker, J. King, C.E. Avalos, A. Ajoy, J. Wrachtrup, A. Pines, C.A. Meriles [PDF]

arXiv:1711.07576 — Phys. Rev. B. 97, 024422 (2018).

Selected as an Editor's Suggestion.

15. A bright nanowire single photon source
15. A bright nanowire single photon source

L. Marseglia, K. Saha, A. Ajoy, T. Schroder, D. R. Englund, T. Teraji, J. Isoya, F. Jelezko, R. Walsworth, J. L. Pacheco, D. Perry, E. Bielejec and P. Cappellaro [PDF]
Optics Express 26, 80, (2018).

14. Evolution-free Hamiltonian parameter estimation through Zeeman markers
14. Evolution-free Hamiltonian parameter estimation through Zeeman markers

D. Burgarth and A. Ajoy [PDF] [SI]
arXiv:1705.07725 — Phys. Rev. Lett. 119, 030402 (2017) .

13. Quantum Interpolation for High Resolution Sensing
13. Quantum Interpolation for High Resolution Sensing

Spotlighted by MIT NEWS.
A. Ajoy, Y. X. Liu, K. Saha, L. Marseglia, J.-C. Jaskula, U. Bissbort and P. Cappellaro [PDF][SI]
arXiv:1604.01677 -- Proc. Natl. Acad. Sci. 114, 2149 (2017).

12. Substance from shadow: GN Ramachandran's contributions to medical imaging
12. Substance from shadow: GN Ramachandran's contributions to medical imaging

A. Kumar and A. Ajoy
Resonance 8, 741 (2016).

11. Atomic-scale nuclear spin imaging using quantum-assisted sensors in diamond
11. Atomic-scale nuclear spin imaging using quantum-assisted sensors in diamond

Spotlighted by MIT News and Chemistry World
A. Ajoy, U. Bissbort, M.D. Lukin, R.L. Walsworth and P. Cappellaro [PDF] [SI]

arXiv:1407.3134 — Phys. Rev. X 5, 011001 (2015).

10. Decay of spin coherences in one-dimensional spin systems
10. Decay of spin coherences in one-dimensional spin systems

G. Kaur, A. Ajoy and P. Cappellaro [PDF]
arXiv:1306.2620 — New J. Phys. 15, 093035 (2013).

9. Quantum simulation via filtered Hamiltonian engineering: application to perfect quantum transport in spin networks
9. Quantum simulation via filtered Hamiltonian engineering: application to perfect quantum transport in spin networks

A. Ajoy and P. Cappellaro [PDF]
arXiv:1208.3656  — Phys. Rev. Lett. 110, 220503 (2013)

8. Perfect quantum transport in arbitrary spin networks
8. Perfect quantum transport in arbitrary spin networks

A. Ajoy and P. Cappellaro [PDF]
arXiv:1207.5580 — Phys. Rev. B 87, 064303 (2013).

7. Stable three-axis nuclear-spin gyroscope in diamond
7. Stable three-axis nuclear-spin gyroscope in diamond

A. Ajoy and P. Cappellaro [PDF]
arXiv:1205.1494  — Phys. Rev. A 86, 062104 (2012).

6. Mixed-state quantum transport in correlated spin networks
6. Mixed-state quantum transport in correlated spin networks

A. Ajoy and P. Cappellaro [PDF]
arXiv:1204.1363 — Phys. Rev. A 85, 042305 (2012).

5. Algorithmic approach to simulate Hamiltonian dynamics and an NMR simulation of Quantum State Transfer
5. Algorithmic approach to simulate Hamiltonian dynamics and an NMR simulation of Quantum State Transfer

Spotlighted by Phys. Org.
A. Ajoy* and P. Cappellaro [PDF] [SI]
arXiv:0911.5467  — Phys. Rev. A 85, 030303(R) (2012) Rapid Communication.

4. Optimal pulse spacing for dynamical decoupling in the presence of a purely dephasing spin bath
4. Optimal pulse spacing for dynamical decoupling in the presence of a purely dephasing spin bath

A. Ajoy, G.A. Álvarez and D. Suter [PDF]
arXiv:1204.1363 — Phys. Rev. A 83, 032303 (2011)

3. Performance comparison of dynamical decoupling sequences for a qubit in a rapidly fluctuating spin bath
3. Performance comparison of dynamical decoupling sequences for a qubit in a rapidly fluctuating spin bath

G.A. Álvarez, A. Ajoy, X. Peng and D. Suter [PDF]
arXiv:1008.1962 — Phys. Rev. A 82, 042306 (2010).