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Hybrid quantum devices, in which disparate quantum elements are combined in order to achieve enhanced functionality, have received much attention in recent years due to their exciting potential to address key problems in quantum information…

Coherent control of the nitrogen-vacancy (NV) center in diamond's triplet spin state has traditionally been accomplished with resonant ac magnetic fields under the constraint of the magnetic dipole selection rule, which forbids direct…

Quantum Physics · Physics 2014-12-04 E. R. MacQuarrie , T. A. Gosavi , A. M. Moehle , N. R. Jungwirth , S. A. Bhave , G. D. Fuchs

The Nitrogen-Vacancy (NV) defect in diamond is a unique quantum system that offers precision sensing of nanoscale physical quantities beyond the current state-of-the-art. Here we present a method to controllably encode the interactions in…

The development of hybrid quantum systems is central to the advancement of emerging quantum technologies, including quantum information science and quantum-assisted sensing. The recent demonstration of high quality single-crystal diamond…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Preeti Ovartchaiyapong , Kenneth W. Lee , Bryan A. Myers , Ania C. Bleszynski Jayich

Solid-state spin defects are a promising platform for quantum networks. A key requirement is to combine long ground-state spin-coherence times with a coherent optical transition for spin-photon entanglement. Here, we investigate the spin…

A central aim of quantum information processing is the efficient entanglement of multiple stationary quantum memories via photons. Among solid-state systems, the nitrogen-vacancy (NV) centre in diamond has emerged as an excellent optically…

There has been rapidly growing interest in hybrid quantum devices involving a solid-state spin and a macroscopic mechanical oscillator. Such hybrid devices create exciting opportunities to mediate interactions between disparate qubits and…

Diamond has emerged as a highly promising platform for quantum network applications. Color centers in diamond fulfill the fundamental requirements for quantum nodes: they constitute optically accessible quantum systems with long-lived spin…

Quantum Physics · Physics 2024-05-27 Laura Orphal-Kobin , Cem Güney Torun , Julian M. Bopp , Gregor Pieplow , Tim Schröder

An ensemble of negatively charged nitrogen-vacancy centers in diamond can act as a precise quantum sensor even under ambient conditions. In particular, to optimize thier sensitivity, it is crucial to increase the number of spins sampled and…

Circuit-QED has demonstrated very strong coupling between individual microwave photons trapped in a superconducting coplanar resonator and nearby superconducting qubits. In this work we show how, by designing a novel interconnect, one can…

Quantum Physics · Physics 2015-05-14 J. Twamley , S. D. Barrett

Studies of individual quantum systems, which have led to considerable progress in our understanding of quantum physics, have traditionally been associated with atomic gases. In the last decades however, the emphasis has shifted towards…

Materials Science · Physics 2020-11-26 J. -P. Tetienne , L. P. McGuinness , V. Jacques

The long coherence time of a single nitrogen vacancy (NV) center spin in diamond is a crucial advantage for implementing quantum information processing. However, the realization of strong coupling between single NV spins is challenging.…

Quantum Physics · Physics 2021-05-19 Wei Xiong , Jiaojiao Chen , Baolong Fang , Mingfeng Wang , Liu Ye , J. Q. You

As spin-based quantum technology evolves, the ability to manipulate spin with non-magnetic fields is critical - both for the development of hybrid quantum systems and for compatibility with conventional technology. Particularly useful…

Quantum Physics · Physics 2015-06-16 E. R. MacQuarrie , T. A. Gosavi , N. R. Jungwirth , S. A. Bhave , G. D. Fuchs

Diamond's nitrogen vacancy (NV) center is an optically active defect with long spin coherence times, showing great potential for both efficient nanoscale magnetometry and quantum information processing schemes. Recently, both the formation…

Diamond colour centres are promising optically-addressable solid state spins that can be matter-qubits, mediate deterministic interaction between photons and act as single photon emitters. Useful quantum computers will comprise millions of…

Nuclear spins near group-IV defects in diamond are promising candidates for quantum memories in quantum network applications. Here, we demonstrate high-fidelity control of a single $^{13}$C nuclear spin coupled to a tin-vacancy (SnV) center…

Solid state spins have demonstrated significant potential in quantum sensing with applications including fundamental science, medical diagnostics and navigation. The quantum sensing schemes showing best performance under ambient conditions…

Mesoscale and Nanoscale Physics · Physics 2023-06-14 Beat Bürgler , Tobias F. Sjolander , Ovidiu Brinza , Alexandre Tallaire , Jocelyn Achard , Patrick Maletinsky

The nitrogen-vacancy (NV) center spin represents an appealing candidate for quantum information processing. Besides the widely used microwave control, its coherent manipulation may also be achieved using laser as mediated by the excited…

Quantum Physics · Physics 2022-05-05 Jiazhao Tian , Tianyi Du , Yu Liu , Haibin Liu , Fangzhou Jin , Ressa S. Said , Jianming Cai

We use nominally forbidden electron-nuclear spin transitions in nitrogen-vacancy (NV) centers in diamond to demonstrate coherent manipulation of a nuclear spin ensemble using microwave fields at room temperature. We show that employing an…

Quantum Physics · Physics 2021-04-21 P. Huillery , J. Leibold , T. Delord , L. Nicolas , J. Achard , A. Tallaire , G. Hétet

Strong interactions between spins in many-body solid-state quantum system is a crucial resource for exploring and applying non-classical states. In particular, electronic spins associated with defects in diamond system are a leading…

Quantum Physics · Physics 2023-05-03 Junghyun Lee , Mamiko Tatsuta , Andrew Xu , Erik Bauch , Mark J. H. Ku , Ronald. L. Walsworth