Optically induced static magnetic field in ensemble of nitrogen-vacancy centers in diamond

• URL: http://arxiv.org/abs/2205.03010v1
• Date: Fri, 6 May 2022 04:38:10 GMT
• Title: Optically induced static magnetic field in ensemble of nitrogen-vacancy centers in diamond
• Authors: Farid Kalhor, Noah F. Opondo, Shoaib Mahmud, Leif Bauer, Li-Ping Yang, Sunil A. Bhave, and Zubin Jacob
• Abstract summary: Local magnetic field at the nanoscale is desired for many applications such as spin-qubit-based quantum memories. Here, we demonstrate photonic spin density (PSD) induced effective static magnetic field for an ensemble of nitrogen-vacancy (NV) centers in bulk diamond.
• Score: 4.734663513676815
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Generation of local magnetic field at the nanoscale is desired for many applications such as spin-qubit-based quantum memories. However, this is a challenge due to the slow decay of static magnetic fields. Here, we demonstrate photonic spin density (PSD) induced effective static magnetic field for an ensemble of nitrogen-vacancy (NV) centers in bulk diamond. This locally induced magnetic field is a result of coherent interaction between the optical excitation and the NV centers. We demonstrate an optically induced spin rotation on the Bloch sphere exceeding 10 degrees which has potential applications in all optical coherent control of spin qubits.

Related papers

• Quantum sensing via magnetic-noise-protected states in an electronic spin dyad [0.0]
  We investigate the coherent spin dynamics of a hetero-spin system formed by a spin S=1 featuring a non-zero crystal field. We show that the zero-quantum coherences we create between them can be remarkably long-lived. These spin dyads could be exploited as nanoscale gradiometers for precision magnetometry or as probes for magnetic-noise-free electrometry and thermal sensing.
  arXiv  Detail & Related papers  (2023-06-29T19:27:17Z)
• All-Optical Nuclear Quantum Sensing using Nitrogen-Vacancy Centers in Diamond [52.77024349608834]
  Microwave or radio-frequency driving poses a significant limitation for miniaturization, energy-efficiency and non-invasiveness of quantum sensors. We overcome this limitation by demonstrating a purely optical approach to coherent quantum sensing. Our results pave the way for highly compact quantum sensors to be employed for magnetometry or gyroscopy applications.
  arXiv  Detail & Related papers  (2022-12-14T08:34:11Z)
• Magnetic-field-induced cavity protection for intersubband polaritons [52.77024349608834]
  We analyse the effect of a strong perpendicular magnetic field on an intersubband transition in a disordered doped quantum well strongly coupled to an optical cavity. The magnetic field changes the lineshape of the intersubband optical transition due to the roughness of the interface of the quantum well from a Lorentzian to a Gaussian one.
  arXiv  Detail & Related papers  (2022-10-14T18:00:03Z)
• High-resolution spectroscopy of a single nitrogen-vacancy defect at zero magnetic field [0.3848364262836075]
  We report a study of high-resolution microwave spectroscopy of nitrogen-vacancy centers in diamond crystals at and around zero magnetic field. We observe characteristic splitting and transition imbalance of the hyperfine transitions, which originate from level anti-crossings in the presence of a transverse effective field. Our results are of importance for the optimization of the experimental conditions for the polarization-selective microwave excitation of spin-1 systems in zero or weak magnetic fields.
  arXiv  Detail & Related papers  (2022-06-30T02:49:49Z)
• Zero-field magnetometry using hyperfine-biased nitrogen-vacancy centers near diamond surfaces [5.189354274663932]
  We show that a 130 MHz coupling from a first-shell 13C nuclear spin can provide an effective bias field to an NV center spin. With the charge noises suppressed by the strong hyperfine field, the ac magnetometry under zero field also reaches the limit set by decoherence. The hyperfine-bias enhanced zero-field magnetometry can be combined with dynamical decoupling to enhance single-molecule magnetic resonance spectroscopy.
  arXiv  Detail & Related papers  (2021-09-12T06:37:52Z)
• Quantum control of nuclear spin qubits in a rapidly rotating diamond [62.997667081978825]
  Nuclear spins in certain solids couple weakly to their environment, making them attractive candidates for quantum information processing and inertial sensing. We demonstrate optical nuclear spin polarization and rapid quantum control of nuclear spins in a diamond physically rotating at $1,$kHz, faster than the nuclear spin coherence time. Our work liberates a previously inaccessible degree of freedom of the NV nuclear spin, unlocking new approaches to quantum control and rotation sensing.
  arXiv  Detail & Related papers  (2021-07-27T03:39:36Z)
• Anisotropic electron-nuclear interactions in a rotating quantum spin bath [55.41644538483948]
  Spin-bath interactions are strongly anisotropic, and rapid physical rotation has long been used in solid-state nuclear magnetic resonance. We show that the interaction between electron spins of nitrogen-vacancy centers and a bath of $13$C nuclear spins introduces decoherence into the system. Our findings offer new insights into the use of physical rotation for quantum control with implications for quantum systems having motional and rotational degrees of freedom that are not fixed.
  arXiv  Detail & Related papers  (2021-05-16T06:15:00Z)
• Angle Locking of a Levitating Diamond using Spin-Diamagnetism [0.0]
  We report on angle locking of the crystalline axis of a trapped micro-diamond along an external magnetic field. Specifically, we use spin population inversion after a ground state level crossing of the NV center to turn the diamond into a diamagnet. The diamond crystalline axis naturally aligns to the magnetic field with high precision and in the absence of micro-wave, offering bright prospects for applications in biology and spin-mechanical platforms.
  arXiv  Detail & Related papers  (2021-02-26T18:30:04Z)
• Laser threshold magnetometry using green light absorption by diamond nitrogen vacancies in an external cavity laser [52.77024349608834]
  Nitrogen vacancy (NV) centers in diamond have attracted considerable recent interest for use in quantum sensing. We show theoretical sensitivity to magnetic field on the pT/sqrt(Hz) level is possible using a diamond with an optimal density of NV centers.
  arXiv  Detail & Related papers  (2021-01-22T18:58:05Z)
• Spin emitters beyond the point dipole approximation in nanomagnonic cavities [0.0]
  Control over transition rates between spin states of emitters is crucial in a variety of fields ranging from quantum information science to the nanochemistry of free radicals. We present an approach to drive a both electric and magnetic dipole-forbidden transition of a spin emitter by placing it in a nanomagnonic cavity.
  arXiv  Detail & Related papers  (2020-12-08T19:00:02Z)
• Spin current generation and control in carbon nanotubes by combining rotation and magnetic field [78.72753218464803]
  We study the quantum dynamics of ballistic electrons in rotating carbon nanotubes in the presence of a uniform magnetic field. By suitably combining the applied magnetic field intensity and rotation speed, one can tune one of the currents to zero while keeping the other one finite, giving rise to a spin current generator.
  arXiv  Detail & Related papers  (2020-01-20T08:54:56Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.