Interferometric control of nanorotor alignment
- URL: http://arxiv.org/abs/2110.01301v2
- Date: Thu, 17 Feb 2022 17:53:18 GMT
- Title: Interferometric control of nanorotor alignment
- Authors: Birthe Schrinski, Benjamin A. Stickler, Klaus Hornberger
- Abstract summary: 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.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The intrinsically non-linear rotation dynamics of rigid bodies offer
unprecedented ways to exploit their quantum motion. In this Letter we devise a
rotational analog of Mach-Zehnder interferometry, which allows steering
symmetric rotors from fully aligned to completely antialigned. The scheme uses
a superposition of four distinct orientations, emerging at the eighth of the
quantum revival time, whose interference can be controlled by a weak laser
pulse. We develop a semiclassical model of the effect and demonstrate that it
persists even in presence of imperfections and decoherence.
Related papers
- Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide.
When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits.
We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
arXiv Detail & Related papers (2024-08-30T15:54:33Z) - Engineering One Axis Twisting via a Dissipative Berry Phase Using Strong
Symmetries [0.0]
We show how a driven-dissipative cavity coupled to a collective ensemble of atoms can generate metrologically useful spin-squeezed states.
This work shows that it is possible to generate entanglement in an atom-cavity resonant regime with macroscopic optical excitations of the system.
arXiv Detail & Related papers (2024-01-11T19:03:46Z) - Bichromatic Rabi control of semiconductor qubits [0.0]
We show coherent bichromatic Rabi control of quantum dot hole spin qubits, offering a spatially-selective approach for large qubit arrays.
Our theoretical framework aligns with experimental data, highlighting interdot motion as the dominant mechanism for bichromatic driving.
arXiv Detail & Related papers (2023-08-03T12:26:02Z) - Floquet-engineered nonlinearities and controllable pair-hopping
processes: From optical Kerr cavities to correlated quantum matter [0.0]
This work explores the possibility of creating and controlling unconventional nonlinearities by periodic driving.
By means of a parent quantum many-body description, we demonstrate that such driven systems are well captured by an effective NLSE.
We analyze these intriguing properties both in the weakly-interacting (mean-field) regime, captured by the effective NLSE, and in the strongly-correlated quantum regime.
arXiv Detail & Related papers (2023-04-12T13:56:27Z) - Probing the symmetry breaking of a light--matter system by an ancillary
qubit [50.591267188664666]
Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena.
We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator.
This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
arXiv Detail & Related papers (2022-09-13T06:14:08Z) - Tuning long-range fermion-mediated interactions in cold-atom quantum
simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior.
Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z) - Harmonic oscillator kicked by spin measurements: a Floquet-like system
without classical analogous [62.997667081978825]
The impulsive driving is provided by stroboscopic measurements on an ancillary degree of freedom.
The dynamics of this system is determined in closed analytical form.
We observe regimes with crystalline and quasicrystalline structures in phase space, resonances, and evidences of chaotic behavior.
arXiv Detail & Related papers (2021-11-23T20:25:57Z) - Torque-free manipulation of nanoparticle rotations via embedded spins [0.8443359047390766]
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.
arXiv Detail & Related papers (2021-09-21T17:47:26Z) - Ancilla assisted Discrete Time Crystals in Non-interacting Spin Systems [0.0]
We show the emergence of discrete time translation symmetry breaking in non-interacting systems.
These time-periodic structures become stable against perturbations only in the presence of their interaction with the ancillary quantum system.
arXiv Detail & Related papers (2021-07-25T07:41:24Z) - Probing the coherence of solid-state qubits at avoided crossings [51.805457601192614]
We study the quantum dynamics of paramagnetic defects interacting with a nuclear spin bath at avoided crossings.
The proposed theoretical approach paves the way to designing the coherence properties of spin qubits from first principles.
arXiv Detail & Related papers (2020-10-21T15:37:59Z) - Waveguide quantum optomechanics: parity-time phase transitions in
ultrastrong coupling regime [125.99533416395765]
We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction.
The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry.
The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
arXiv Detail & Related papers (2020-07-04T11:02:20Z)
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.