Torque-free manipulation of nanoparticle rotations via embedded spins
- URL: http://arxiv.org/abs/2109.10340v2
- Date: Mon, 25 Oct 2021 18:20:02 GMT
- Title: Torque-free manipulation of nanoparticle rotations via embedded spins
- Authors: Yue Ma, M. S. Kim, Benjamin A. Stickler
- Abstract summary: We show that the revolutions of symmetric nanorotors can be strongly affected by a small number of spins.
The resulting dynamics are intrinsic with freely rotating nanodiamonds with embedded nitrogen-vacancy centers.
- Score: 0.8443359047390766
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Spin angular momentum and mechanical rotation both contribute to the total
angular momentum of rigid bodies, leading to spin-rotational coupling via the
Einstein-de Haas and Barnett effects. Here we show that the revolutions of
symmetric nanorotors can be strongly affected by a small number of intrinsic
spins. The resulting dynamics are observable with freely rotating nanodiamonds
with embedded nitrogen-vacancy centers and persist for realistically-shaped
near-symmetric particles, opening the door to torque-free schemes to control
their rotations at the quantum level.
Related papers
- Spin-dependent Force from an NV center Ensemble on a Microlever [0.0]
We report the observation of spin-dependent force induced by Nitrogen Vacancy (NV) centers embedded in a diamond crystal attached to a tethered oscillator.
Results were obtained using a spin-dependent torque generated by a micro-diamond containing billions of NV centers, placed at the end of a commercially available silicon cantilever.
arXiv Detail & Related papers (2024-10-24T14:14:11Z) - Spin Read-out of the Motion of Levitated Electrically Rotated Diamonds [0.0]
We demonstrate electrically driven rotation of micro-particles levitating in Paul traps.
Spin states of nitrogen-vacancy centers in diamonds undergoing full rotation were successfully controlled.
These achievements mark progress toward interfacing full rotation with internal magnetic degrees of freedom in micron-scale objects.
arXiv Detail & Related papers (2023-09-04T11:56:15Z) - 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) - Spin-Controlled Quantum Interference of Levitated Nanorotors [0.0]
We describe how to prepare an electrically levitated nanodiamond in a superposition of orientations via microwave driving of a single embedded nitrogen-vacancy center.
We derive the effective spin-oscillator Hamiltonian for small amplitude rotation about the equilibrium configuration and develop a protocol to create and observe quantum superpositions of the particle orientation.
arXiv Detail & Related papers (2022-03-22T13:25:46Z) - Interferometric control of nanorotor alignment [0.0]
We devise a rotational analog of Mach-Zehnder interferometry, which allows steering symmetric rotors from fully aligned to completely antialigned.
We develop a semiclassical model of the effect and demonstrate that it persists even in presence of imperfections and decoherence.
arXiv Detail & Related papers (2021-10-04T10:10:56Z) - 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) - Magnetic-Torque Enhanced by Tunable Dipolar interactions [0.0]
We use tunable dipolar-interactions between the spins of nitrogen-vacancy (NV) centers in diamond to rotate a diamond crystal.
We employ cross-relaxation between the electronic spin of pairs of NV centers in a trapped diamond to enhance the anisotropic NV paramagnetism.
arXiv Detail & Related papers (2021-03-01T08:09:45Z) - 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) - Energy and momentum conservation in spin transfer [77.34726150561087]
We show that energy and linear momentum conservation laws impose strong constraints on the properties of magnetic excitations induced by spin transfer.
Our results suggest the possibility to achieve precise control of spin transfer-driven magnetization dynamics.
arXiv Detail & Related papers (2020-04-04T15:43:30Z) - 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.