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The negatively charged nitrogen-vacancy (NV-) center in diamond is an attractive candidate for applications that range from magnetometry to quantum information processing. Here we show that only a fraction of the nitrogen (typically < 0.5…

The nitrogen-vacancy (NV) center in diamond is a leading solid-state platform for room-temperature quantum magnetometry owing to its long spin coherence times, optical spin initialization and readout, and high sensitivity to magnetic,…

Quantum Physics · Physics 2026-01-21 Satyam Pandey , Abhimanyu Magapu , Prabhat Anand , Ankit Khandelwal , M. Girish Chandra

The negatively-charged silicon-vacancy (SiV$^-$) color center in diamond has recently emerged as a promising system for quantum photonics. Its symmetry-protected optical transitions enable creation of indistinguishable emitter arrays and…

Optically active solid-state spin defects have the potential to become a versatile resource for quantum information processing applications. Nitrogen-vacancy defect centers (NV) in diamond act as quantum memories and can be interfaced by…

The germanium vacancy in diamond (GeV) is a promising candidate for color center based quantum networking. Yet, like for other group-IV vacancy defects in diamond, achieving fast, high-fidelity qubit operations using traditional magnetic…

Mesoscale and Nanoscale Physics · Physics 2025-07-28 C. Adambukulam , J. A. Scott , S. Q. Lim , I. Aharonovich , A. Morello , A. Laucht

Quantum transduction between microwave and optical photons plays a key role in quantum communication among remote qubits. Although the quantum transduction schemes generating communication photons have been successfully demonstrated by…

Quantum Physics · Physics 2023-10-18 Byunggi Kim , Hodaka Kurokawa , Katsuta Sakai , Kazuki Koshino , Hideo Kosaka , Masahiro Nomura

Nitrogen-vacancy (NV) centers in diamond are among the most promising solid-state qubit candidates, owing to their exceptionally long spin coherence times, efficient spin-photon coupling, room-temperature operation, and steadily advancing…

Quantum Physics · Physics 2025-04-21 Arjun Raghavan , Seokjin Bae , Nazar Delegan , F. Joseph Heremans , Vidya Madhavan

We report an experimental design where the position and resonance frequency of the Nitrogen Vacancy (NV) in a diamond are correlated with the room temperature. A simple model trained on the interpolated correlation data predicts both…

Quantum Physics · Physics 2026-01-06 Manpreet Singh Jattana , Thomas Lippert

The nitrogen-vacancy (NV) center in diamond is a promising quantum system for magnetometry applications exhibiting optical readout of minute energy shifts in its spin sub-levels. Key material requirements for NV ensembles are a high NV$^-$…

We propose an efficient scheme for transferring quantum states and generating entangled states between two qubits of different nature. The hybrid system consists a single nitrogen vacancy (NV) center and a superconducting (SC) qubit, which…

Quantum Physics · Physics 2018-05-23 Chang-Hao Li , Peng-Bo Li

Nitrogen-vacancy (NV) centers in diamond can be used for nanoscale sensing with atomic resolution and sensitivity; however, it has been observed that their properties degrade as they approach the diamond surface. Here we report that in…

Shallow nitrogen-vacancy (NV-) centers in diamond are among the most promising quantum sensors, offering high sensitivity and nanoscale spatial resolution. These systems are, however, prone to decoherence due to coupling with surface…

Materials Science · Physics 2025-05-19 Arsineh Apelian , Mariya Romanova , Vojtech Vlcek

The protocols for the control and readout of Nitrogen Vacancy (NV) centres electron spins in diamond offer an advanced platform for quantum computation, metrology and sensing. These protocols are based on the optical readout of photons…

Mesoscale and Nanoscale Physics · Physics 2019-06-26 E. Bourgeois , A. Jarmola , M. Gulka , J. Hruby , D. Budker , M. Nesladek

Enabling scalable and energy-efficient control of spin defects in solid-state media is desirable for realizing transformative quantum information technologies. Exploiting voltage-controlled magnetic anisotropy, we report coherent…

The charge degree of freedom in solid-state defects fundamentally underpins the electronic spin degree of freedom, a workhorse of quantum technologies. Here we study charge state properties of individual near-surface nitrogen-vacancy (NV)…

Mesoscale and Nanoscale Physics · Physics 2019-02-26 Dolev Bluvstein , Zhiran Zhang , Ania C. Bleszynski Jayich

The excited orbitals of color centers typically show stronger electric dipoles, which can serve as a resource for entanglement, emission tuning, or electric field sensing. Here, we use resonant laser excitation to expose strong transition…

We propose a scheme of quantum information processing with NV-centers embedded inside diamond nanostructure. Single NV-center placed in the cavity plays role of an electron spin qubit which evolution is controlled by microwave pulses.…

Quantum Physics · Physics 2015-06-12 Alexander V. Tsukanov , Igor Yu. Kateev , Alexander A. Orlikovsky

Diamond has attracted great interest as a quantum technology platform thanks to its optically active nitrogen vacancy center (NV). The NV's ground state spin can be read out optically exhibiting long spin coherence times of about 1 ms even…

Etching experiments were performed that reveal the vertical distribution of optically active nitrogen-vacancy (NV) centers in diamond created in close proximity to a surface through ion implantation and annealing. The NV distribution…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Charles Santori , Paul E. Barclay , Kai-Mei C. Fu , Raymond G. Beausoleil

Polarons can control carrier mobility and can also be used in the design of quantum devices. Although much effort has been directed into investigating the nature of polarons, observation of defect-related polarons is challenging due to…

Materials Science · Physics 2024-09-11 Takuto Ichikawa , Junjie Guo , Paul Fons , Dwi Prananto , Toshu An , Muneaki Hase