Superior dark-state cooling via nonreciprocal couplings in trapped atoms

• URL: http://arxiv.org/abs/2206.14411v1
• Date: Wed, 29 Jun 2022 05:43:22 GMT
• Title: Superior dark-state cooling via nonreciprocal couplings in trapped atoms
• Authors: Chun-Che Wang, Yi-Cheng Wang, Chung-Hsien Wang, Chi-Chih Chen, and H. H. Jen
• Abstract summary: Cooling trapped atoms toward their motional ground states is key to applications of quantum simulation and quantum computation. We present an intriguing dark-state cooling scheme in $Lambda$-type three-level structure, which is shown superior than the conventional electromagnetically-induced-transparency cooling in a single atom.
• Score: 4.915587669065746
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Cooling the trapped atoms toward their motional ground states is key to applications of quantum simulation and quantum computation. By utilizing nonreciprocal couplings between constituent atoms, we present an intriguing dark-state cooling scheme in $\Lambda$-type three-level structure, which is shown superior than the conventional electromagnetically-induced-transparency cooling in a single atom. The effective nonreciprocal couplings can be facilitated either by an atom-waveguide interface or a free-space photonic quantum link. By tailoring system parameters allowed in dark-state cooling, we identify the parameter regions of better cooling performance with an enhanced cooling rate. We further demonstrate a mapping to the dark-state sideband cooling under asymmetric laser driving fields, which shows a distinct heat transfer and promises an outperforming dark-state sideband cooling assisted by collective spin-exchange interactions.

Related papers

• A Generalized Theory for Optical Cooling of a Trapped Atom with Spin [0.0]
  We present a unified formalism for optical cooling mechanisms in neutral atom tweezers. We propose new strategies for achieving ground-state cooling in optical tweezers.
  arXiv  Detail & Related papers  (2024-06-27T13:13:42Z)
• Limits for coherent optical control of quantum emitters in layered materials [49.596352607801784]
  coherent control of a two-level system is among the most essential challenges in modern quantum optics. We use a mechanically isolated quantum emitter in hexagonal boron nitride to explore the individual mechanisms which affect the coherence of an optical transition under resonant drive. New insights on the underlying physical decoherence mechanisms reveals a limit in temperature until which coherent driving of the system is possible.
  arXiv  Detail & Related papers  (2023-12-18T10:37:06Z)
• Quantum field heat engine powered by phonon-photon interactions [58.720142291102135]
  We present a quantum heat engine based on a cavity with two oscillating mirrors. The engine performs an Otto cycle during which the walls and a field mode interact via a nonlinear Hamiltonian.
  arXiv  Detail & Related papers  (2023-05-10T20:27:15Z)
• Motional ground-state cooling of single atoms in state-dependent optical tweezers [0.1631115063641726]
  We study a novel laser cooling scheme for single atoms in optical tweezers. The scheme exploits sequential addressing of red sideband transitions via frequency chirping of the cooling light. It induces light-assisted collisions, which are key to the assembly of large atom arrays.
  arXiv  Detail & Related papers  (2023-02-08T08:33:19Z)
• Enhanced dark-state sideband cooling in trapped atoms via photon-mediated dipole-dipole interactions [4.915587669065746]
  We present an enhanced dark-state sideband cooling in trapped atoms utilizing photon-mediated dipole-dipole interactions among them. By placing the atoms at the magic interparticle distances, we manifest an outperformed cooling behavior in the target atom. Our results provide insights to subrecoil cooling of atoms with collective and light-induced long-range dipole-dipole interactions, and pave the way toward implementing genuine quantum operations in multiple quantum registers.
  arXiv  Detail & Related papers  (2022-10-12T13:33:20Z)
• Quantum-limited millimeter wave to optical transduction [50.663540427505616]
  Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
  arXiv  Detail & Related papers  (2022-07-20T18:04:26Z)
• Tunable directional emission and collective dissipation with quantum metasurfaces [62.997667081978825]
  Subradiant excitations propagate through the atomic array with very long lifetimes. We demonstrate that one can harness these excitations to obtain tunable directional emission patterns. We also benchmark how these directional emission patterns translate into collective, anisotropic dissipative couplings.
  arXiv  Detail & Related papers  (2021-07-01T14:26:33Z)
• Fast Laser Cooling Using Optimal Quantum Control [11.815965846475027]
  State of the art cooling schemes often work under a set of optimal cooling conditions derived analytically. We show that faster cooling can be achieved while at the same time a low average phonon occupation can be retained.
  arXiv  Detail & Related papers  (2021-06-10T01:01:18Z)
• Quantum thermodynamics of coronal heating [77.34726150561087]
  convection in the stellar photosphere generates plasma waves by an irreversible process akin to Zeldovich superradiance and sonic booms. Energy is mostly carried by megahertz Alfven waves that scatter elastically until they reach a height at which they can dissipate via mode conversion.
  arXiv  Detail & Related papers  (2021-03-15T22:27:31Z)
• Nearly nondestructive thermometry of labeled cold atoms and application to isotropic laser cooling [9.725027775065215]
  We have developed an upgrade in the form of nondestructive thermometry. We have applied the recently developed optical configuration with the cooling laser injection in the form of hollow beams.
  arXiv  Detail & Related papers  (2020-06-15T03:47:49Z)
• Algorithmic Cooling of Nuclear Spin Pairs using a Long-Lived Singlet State [48.7576911714538]
  We show that significant cooling is achieved on an ensemble of spin-pair systems by exploiting the long-lived nuclear singlet state. This is the first demonstration of algorithmic cooling using a quantum superposition state.
  arXiv  Detail & Related papers  (2019-12-31T09:57:03Z)

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.