Related papers: Constraints on Spin-Spin-Velocity-Dependent Interaction

Related papers

New Constraints on Exotic Spin-Spin-Velocity-Dependent Interactions with Solid-State Quantum Sensors [12.420668336718697]
We report new experimental results on exotic spin-spin-velocity-dependent interactions between electron spins. One of the NV ensembles serves as the spin source, while the other functions as the spin sensor. We are able to scrutinize exotic spin-spin-velocity-dependent interactions at short force ranges.
arXiv Detail & Related papers (2024-03-27T05:33:18Z)
Improved Limits on an Exotic Spin- and Velocity-Dependent Interaction at the Micrometer Scale with an Ensemble-NV-Diamond Magnetometer [7.684562006253786]
We search for an exotic spin- and velocity-dependent interaction between polarized electron spins and unpolarized nucleons at the micrometer scale. The result establishes new bounds for the coupling parameter $f_perp$ within the force range from 5 to 400 $rm mu$m.
arXiv Detail & Related papers (2023-08-04T11:21:41Z)
Spin-orbit torque on nuclear spins exerted by a spin accumulation via hyperfine interactions [49.1574468325115]
This article demonstrates that the hyperfine coupling, which consists of Fermi contact and dipolar interactions, can mediate the application of spin-orbit torques acting on nuclear spins. The reactions to the equilibrium and nonequilibrium components of the spin density is a torque on the nucleus with field-like and damping-like components. This nuclear spin-orbit torque is a step toward stabilizing and controlling nuclear magnetic momenta, in magnitude and direction, and realizing nuclear spintronics.
arXiv Detail & Related papers (2023-05-21T08:05:23Z)
Ultrasensitive atomic comagnetometer with enhanced nuclear spin coherence [8.784565323288149]
A new relaxation mechanism is found in alkali-noble-gas comagnetometers. operating in the self-compensation regime, our device achieves an ultrahigh inertial rotation sensitivity of $3times10-8$,rad/s/Hz$1/2$. We propose to use this comagnetometer to search for exotic spin-dependent interactions involving proton and neutron spins.
arXiv Detail & Related papers (2022-10-17T12:45:21Z)
Probing dynamics of a two-dimensional dipolar spin ensemble using single qubit sensor [62.997667081978825]
We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal. We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder. Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
arXiv Detail & Related papers (2022-07-21T18:00:17Z)
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)
Observing separate spin and charge Fermi seas in a strongly correlated one-dimensional conductor [0.0]
In one dimension (1D), the physics of interacting electrons is captured well at low energies by the Tomonaga-Luttinger model. We report on measurements of many-body modes in 1D gated-wires using tunnelling spectroscopy. Our findings demonstrate the existence of spin-charge separation in the whole energy band outside the low-energy limit of validity of the Tomonaga-Luttinger model.
arXiv Detail & Related papers (2021-02-10T17:30:52Z)
Experimental Constraint on an Exotic Parity-Odd Spin- and Velocity-Dependent Interaction with a Single Electron Spin Quantum Sensor [6.887744934296352]
Experiment set improved constraints on the exotic spin- and velocity-dependent interaction within the force range from 1 to 330 $mu$m. The upper limit of the coupling $g_Aeg_VN $ at $200 mu m$ is $| g_Ae g_VN| leq 8.0times10-19$, significantly improving the current laboratory limit by more than four orders of magnitude.
arXiv Detail & Related papers (2020-09-19T15:31:21Z)
Gravity Probe Spin: Prospects for measuring general-relativistic precession of intrinsic spin using a ferromagnetic gyroscope [51.51258642763384]
An experimental test at the intersection of quantum physics and general relativity is proposed. The behavior of intrinsic spin in spacetime is an experimentally open question. A measurement is possible by using mm-scale ferromagnetic gyroscopes in orbit around the Earth.
arXiv Detail & Related papers (2020-06-16T17:18:44Z)
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)

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