Coherent coupling of mechanics to a single nuclear spin
- URL: http://arxiv.org/abs/2107.10961v1
- Date: Fri, 23 Jul 2021 00:04:55 GMT
- Title: Coherent coupling of mechanics to a single nuclear spin
- Authors: Smarak Maity, Benjamin Pingault, Graham Joe, Michelle Chalupnik,
Daniel Assump\c{c}\~ao, Eliza Cornell, Linbo Shao, Marko Lon\v{c}ar
- Abstract summary: Nuclear spins are generally insensitive to mechanical vibrations.
We successfully demonstrate the coherent coupling of mechanics to a single nuclear spin.
This provides a way to leverage nuclear spins as quantum memories for mechanical systems in the quantum regime.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: Nuclear spins interact weakly with their environment. In particular, they are
generally insensitive to mechanical vibrations. Here, we successfully
demonstrate the coherent coupling of mechanics to a single nuclear spin. This
coupling is mediated by a silicon vacancy (SiV) centre in diamond, taking
advantage of its large strain susceptibility and hyperfine interaction with
nuclear spins. Importantly, we demonstrate that the nuclear spin retains its
excellent coherence properties even in the presence of this coupling. This
provides a way to leverage nuclear spins as quantum memories for mechanical
systems in the quantum regime.
Related papers
- Effective light-induced Hamiltonian for atoms with large nuclear spin [0.0]
Coupling with off-resonance light is an essential tool to selectively and coherently manipulate the nuclear spin states.
We present a systematic derivation of the effective Hamiltonian for the nuclear spin states of ultra-cold fermionic atoms due to such an off-resonance light.
arXiv Detail & Related papers (2024-04-18T18:00:01Z) - Blueprint for efficient nuclear spin characterization with color center [0.0]
Nuclear spins in solids offer a promising avenue for developing scalable quantum hardware.
Characterising individual nuclear spins is quite cumbersome since the characterisation protocols may differ depending on the strength of the hyperfine coupling.
We present a more straightforward approach for determining the hyperfine interactions among each nuclear and the electron spin.
arXiv Detail & Related papers (2024-02-12T22:54:52Z) - 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) - Coherent spin dynamics of hyperfine-coupled vanadium impurities in
silicon carbide [0.0]
We show coherent spin dynamics of an ensemble of vanadium defects around a clock-transition.
We find spin dephasing times up to 7.2 $mu$s, and via spin-echo studies coherence lifetimes that go well beyond tens of microseconds.
Our findings are relevant for understanding a wide class of defects with similar energy scales and crystal symmetries.
arXiv Detail & Related papers (2022-10-18T15:46:05Z) - 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) - Controlled coherent dynamics of [VO(TPP)], a prototype molecular nuclear
qudit with an electronic ancilla [50.002949299918136]
We show that [VO(TPP)] (vanadyl tetraphenylporphyrinate) is a promising system suitable to implement quantum computation algorithms.
It embeds an electronic spin 1/2 coupled through hyperfine interaction to a nuclear spin 7/2, both characterized by remarkable coherence.
arXiv Detail & Related papers (2021-03-15T21:38:41Z) - Nuclear spin readout in a cavity-coupled hybrid quantum dot-donor system [0.0]
Nuclear spins show long coherence times and are well isolated from the environment.
We present a method for nuclear spin readout by probing the transmission of a microwave resonator.
arXiv Detail & Related papers (2020-12-02T16:51:50Z) - Entanglement and control of single quantum memories in isotopically
engineered silicon carbide [89.42372489576658]
Nuclear spins in the solid state are both a cause of decoherence and a valuable resource for spin qubits.
We demonstrate control of isolated 29Si nuclear spins in silicon carbide (SiC) to create an entangled state between an optically active divacancy spin and a strongly coupled nuclear register.
arXiv Detail & Related papers (2020-05-15T15:45:34Z) - Optically pumped spin polarization as a probe of many-body
thermalization [50.591267188664666]
We study the spin diffusion dynamics of 13C in diamond, which we dynamically polarize at room temperature via optical spin pumping of engineered color centers.
We find good thermal contact throughout the nuclear spin bath, virtually independent of the hyperfine coupling strength.
Our results open intriguing opportunities to study the onset of thermalization in a system by controlling the internal interactions within the bath.
arXiv Detail & Related papers (2020-05-01T23:16:33Z)
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.