Boosting energy transfer between quantum devices through spectrum engineering in the dissipative ultrastrong coupling regime

Abstract

The coherent energy transfer between two quantum devices (a quantum charger and a quantum battery) mediated by a photonic cavity is investigated, in presence of dissipative environments, with particular focus on the the ultrastrong coupling regime. Here, very short transfer times and high charging power can be achieved in comparison with the usually addressed weak coupling case. Such phenomenology is further magnified by the presence of level crossings appearing in the energy spectrum and which reveal very robust against dissipative environmental effects. Moreover, by carefully control the physical parameters of the model, e.g. the matter-radiation coupling and the frequencies of the system, it is possible to tune these crossings making this device more flexible and experimentally feasible. Finally to broaden our analysis, we assume the possibility of choosing between a Fock and a coherent initial state of the cavity, with the latter showing better energetic performances.

13 pages, 11 figures

References in corpus (13)

• Photonic quantum technologies
• QuTiP 2: A Python framework for the dynamics of open quantum systems
• Integrated Photonic Quantum Technologies
• Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
• Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
• Quantum versus classical many-body batteries
• Dissipative dynamics of an open quantum battery
• Charging and energy fluctuations of a driven quantum battery
• Quantum advantage of two-level batteries in self-discharging process
• Characterization of a Two-Photon Quantum Battery: Initial Conditions, Stability and Work Extraction
• Generating and controlling spin-polarized currents induced by a quantum spin Hall antidot
• Optimal work-to-work conversion of a nonlinear quantum brownian duet
• Analytically Solvable Model for Qubit-Mediated Energy Transfer between Quantum Batteries

Cited by in corpus (6)

• Dynamical blockade of a reservoir for optimal performances of a quantum battery
• Local ergotropy and its fluctuations across a dissipative quantum phase transition
• Collisional charging of a transmon quantum battery
• Work extraction from a quantum battery charged through an array of coupled cavities
• Optimal control of a dissipative micromaser quantum battery in the ultrastrong coupling regime
• Boosting Work Extraction in Quantum Batteries via Continuous Environment Monitoring