Optically-mediated remote entanglement generation in magnon-cavity systems

• URL: http://arxiv.org/abs/2211.09315v1
• Date: Thu, 17 Nov 2022 03:28:55 GMT
• Title: Optically-mediated remote entanglement generation in magnon-cavity systems
• Authors: Da-Wei Luo, Xiao-Feng Qian, Ting Yu
• Abstract summary: We study the remote entanglement generation between macroscopic microwave magnon modes in a coupled cavity system. The converter may be implemented via a rare-earth doped crystal acting like an effective three-level system.
• Score: 9.708309053263777
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We study the remote entanglement generation between macroscopic microwave magnon modes in a coupled cavity system. The cavities are connected via an optical fiber, which necessitates the use of a frequency conversion inside the cavity. The converter may be implemented via a rare-earth doped crystal acting like an effective three-level system. The entanglement dynamics of the system is analytically studied, and an active optimal control method is also proposed where one may generate maximally entangled Bell states on demand with a given evolution time. The system dynamics and its control have also been studied in a generic non-Markovian open system framework, and the generated entanglement is found to be robust against environmental noises.

Related papers

• Optimal entanglement generation in optomechanical systems via Krotov control of covariance matrix dynamics [2.4484504976493437]
  We show that entanglement between the macroscopic mechanical mirror and the quantum optical cavity can be reliably generated through imposing the control on the detuning of the external laser field. In addition, we systematically studies the effects of quantum control on non-Markovian open system dynamics.
  arXiv  Detail & Related papers  (2024-04-24T22:01:31Z)
• Energy control in a quantum oscillator using coherent control and engineered environment [83.88591755871734]
  We develop and analyze a new method for manipulation of energy in a quantum harmonic oscillator using coherent, electromagnetic, field and incoherent control. An approach to coherent and incoherent controls design based on the speed gradient algorithms is proposed. A robustified speed-gradient control algorithm in differential form is also proposed.
  arXiv  Detail & Related papers  (2024-03-25T20:44:46Z)
• Multi-squeezed state generation and universal bosonic control via a driven quantum Rabi model [68.8204255655161]
  Universal control over a bosonic degree of freedom is key in the quest for quantum-based technologies. Here we consider a single ancillary two-level system, interacting with the bosonic mode of interest via a driven quantum Rabi model. We show that it is sufficient to induce the deterministic realization of a large class of Gaussian and non-Gaussian gates, which in turn provide universal bosonic control.
  arXiv  Detail & Related papers  (2022-09-16T14:18:53Z)
• Coherent feedback in optomechanical systems in the sideband-unresolved regime [0.0]
  experimentally interesting scheme, based on coherent feedback with linear, passive optical components. We find that, by introducing an additional passive element, an optomechanical system in the deeply sideband-unresolved regime will exhibit dynamics similar to one that is sideband-resolved. With this new approach, the experimental realization of groundstate cooling and optomechanical entanglement is well within reach of current integrated state-of-the-art high-Q mechanical resonators.
  arXiv  Detail & Related papers  (2022-06-28T11:49:58Z)
• Macroscopic noise amplification by asymmetric dyads in non-Hermitian optical systems for generative diffusion models [55.2480439325792]
  asymmetric non-Hermitian dyads are promising candidates for efficient sensors and ultra-fast random number generators. integrated light emission from such asymmetric dyads can be efficiently used for all-optical degenerative diffusion models of machine learning.
  arXiv  Detail & Related papers  (2022-06-24T10:19:36Z)
• Chiral current in Floquet cavity-magnonics [0.0]
  Floquet engineering can induce complex collective behaviour and interesting synthetic gauge-field in quantum systems. We realize a chiral state-transfer in a cavity-magnonic system using a Floquet drive on frequencies of the magnon modes.
  arXiv  Detail & Related papers  (2022-06-20T02:33:14Z)
• Extensible circuit-QED architecture via amplitude- and frequency-variable microwaves [52.77024349608834]
  We introduce a circuit-QED architecture combining fixed-frequency qubits and microwave-driven couplers. Drive parameters appear as tunable knobs enabling selective two-qubit coupling and coherent-error suppression.
  arXiv  Detail & Related papers  (2022-04-17T22:49:56Z)
• Highly sensitive controllability of optical bistability in three-level atomic systems [0.0]
  We theoretically investigate the optical bistability phenomenon in an ensemble of $N$ non-interacting three-level atoms trapped inside an optical cavity. The atoms are in a $Lambda$-level configuration, where one atomic transition is coupled by a cavity mode, while the other one is coupled by a classical field.
  arXiv  Detail & Related papers  (2022-01-20T14:03:43Z)
• A low-loss ferrite circulator as a tunable chiral quantum system [108.66477491099887]
  We demonstrate a low-loss waveguide circulator constructed with single-crystalline yttrium iron garnet (YIG) in a 3D cavity. We show the coherent coupling of its chiral internal modes with integrated superconducting niobium cavities. We also probe experimentally the effective non-Hermitian dynamics of this system and its effective non-reciprocal eigenmodes.
  arXiv  Detail & Related papers  (2021-06-21T17:34:02Z)
• Coherent control in the ground and optically excited state of an ensemble of erbium dopants [55.41644538483948]
  Ensembles of erbium dopants can realize quantum memories and frequency converters. In this work, we use a split-ring microwave resonator to demonstrate such control in both the ground and optically excited state.
  arXiv  Detail & Related papers  (2021-05-18T13:03:38Z)
• Nonlocal magnon entanglement generation in coupled hybrid cavity systems [8.63805579617966]
  We investigate generation of macroscopic nonlocal entanglements between massive magnon-superconducting-circuit hybrid systems. Our discrete-variable qubit-like entanglement theory of magnons may lead to direct applications in various quantum information tasks.
  arXiv  Detail & Related papers  (2020-06-11T00:48:36Z)

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.