Detuning-Controlled Phase Transition from Passive to Active Regimes in Non-Markovian Quantum Batteries

• URL: http://arxiv.org/abs/2604.09888v1
• Date: Fri, 10 Apr 2026 20:31:40 GMT
• Title: Detuning-Controlled Phase Transition from Passive to Active Regimes in Non-Markovian Quantum Batteries
• Abstract summary: We investigate a two-qubit quantum battery where coherent charger-battery coupling competes with non-Markovian environmental interactions.<n>By tuning the coupling strengths and detuning, we identify regimes in which environmental memory enhances energy storage and charging power.<n>We show that detuning plays a dual role: reducing dissipation and inducing a phase shift in the memory kernel.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate a two-qubit quantum battery where coherent charger-battery coupling competes with non-Markovian environmental interactions. By tuning the coupling strengths and detuning, we identify regimes in which environmental memory enhances energy storage and charging power, while strong dissipation suppresses ergotropy by driving the battery into passive states. We show that detuning plays a dual role: reducing dissipation and inducing a phase shift in the memory kernel that controls the interference between coherent energy exchange and environment-induced backflow. As a result, although the stored energy varies smoothly, the extractable work exhibits a discontinuous onset at a critical detuning, signaling a first-order phase transition in ergotropy. The corresponding phase diagram in the coupling-detuning plane reveals a sharp boundary between thermodynamically inactive and work-producing regimes. Our results demonstrate that phase-controlled coherence and non-Markovianity provide a powerful mechanism for optimizing work extraction in open quantum batteries, offering practical strategies for noise-resilient quantum energy storage.

Related papers

• Quantum coherence and entanglement in wireless quantum batteries [5.6366350961410525]
  We investigate the charging dynamics and thermodynamic performance of a wireless quantum battery system mediated by a bosonic environment.<n>By employing a unified resource-theoretic analysis, we elucidate the roles of non-Markovian memory effects and coupling symmetry in regulating energy transfer.
  arXiv  Detail & Related papers  (2026-07-30T05:56:37Z)
• Charging Quantum Batteries with Chiral Squeezing [0.8731902640695374]
  We propose a quantum-battery charger based on a driven bosonic Kitaev chain.<n>Chiral squeezing converts passive input fluctuations into ordered, non-passive battery states.<n>Our scheme stores largely extractable energy and achieves a work-like signal-to-noise ratio (SNR) near unity.
  arXiv  Detail & Related papers  (2026-06-15T14:15:12Z)
• Characterizing the functional role of quantum coherence in energy transfer [45.88028371034407]
  Quantum coherence is understood to play a role in excitation energy transfer in open quantum systems.<n>We characterize and quantify the impact of coherence in the eigenenergy basis on a generalized rate of energy transfer.
  arXiv  Detail & Related papers  (2026-06-11T14:33:32Z)
• Charging Quantum Batteries via Dissipative Quenches [0.0]
  We investigate work extraction in open quantum batteries composed of interacting spin chains weakly coupled to engineered environments.<n>We show that purely dissipative dynamics can activate finite ergotropy from completely passive thermal states.<n>In contrast, collective dissipation leads to steady states whose passivity crucially depends on the initial temperature and system size.
  arXiv  Detail & Related papers  (2026-04-09T12:11:33Z)
• Lamb-shift-induced switching of energy transfer in open quantum batteries [4.497763910404594]
  We study the role of environment-induced frequency renormalization in open quantum batteries.<n>We show that the Lamb shift effectively renormalizes the system eigenfrequencies and thereby modifies the resonance condition with the external drive.
  arXiv  Detail & Related papers  (2026-03-21T04:24:10Z)
• Dissipative Quantum Battery in the Ultrastrong Coupling Regime Between Two Oscillators [7.147456266598422]
  We propose an open quantum battery that stores and releases energy by employing a two-mode ultrastrongly coupled bosonic system.<n>Our results demonstrate that both the charging energy and ergotropy of the quantum batteries can be significantly enhanced within the ultra-strong coupling regime.
  arXiv  Detail & Related papers  (2026-02-16T22:26:19Z)
• Signatures of coherent energy transfer and exciton delocalization in time-resolved optical cross correlations [45.88028371034407]
  We investigate how optical second-order cross correlations witness the quantum features of a prototype donor-acceptor light-harvesting unit.<n>Our work strengthens the idea that measurements of the intensity quantum cross correlations can provide distinctive signatures of the quantum behavior of biophysical emitters.
  arXiv  Detail & Related papers  (2025-12-19T16:19:25Z)
• Generalised fractional Rabi problem [35.18016233072556]
  Fractional quantum dynamics provides a natural framework to capture nonlocal temporal behavior and memory effects in quantum systems.<n>In this work, we analyze the physical consequences of fractional-order quantum evolution using a Green's function formulation based on the Caputo fractional derivative.<n>We find that even in the absence of external driving, the static Hamiltonian term induces non-trivial spin dynamics with damping features directly linked to the fractional temporal nonlocality.
  arXiv  Detail & Related papers  (2025-10-09T12:51:57Z)
• Harnessing Environmental Noise for Quantum Energy Storage [0.0]
  We develop an autonomous charging paradigm in which an ensemble of identical two-level units, collectively coupled to a thermal environment, acquires work capacity without any external control.<n>We show that environmental fluctuations can be harnessed to realize drive-free, scalable quantum batteries compatible with circuit- and cavity-QED platforms.
  arXiv  Detail & Related papers  (2025-10-07T19:02:45Z)
• Synchronization of Quasi-Particle Excitations in a Quantum Gas with Cavity-Mediated Interactions [34.82692226532414]
  Driven-dissipative quantum systems can undergo transitions from stationary to dynamical phases.<n>We develop a cavity-assisted Bragg spectroscopy technique to resolve its collective modes.<n>This reveals how dissipation microscopically drives collective dynamics and signals a precursor to a dynamical phase transition.
  arXiv  Detail & Related papers  (2025-04-24T16:44:07Z)
• Autonomous coherence protection of a two-level system in a fluctuating environment [68.8204255655161]
  We re-examine a scheme originally intended to remove the effects of static Doppler broadening from an ensemble of non-interacting two-level systems (qubits) We demonstrate that this scheme is far more powerful and can also protect a single (or even an ensemble) qubit's energy levels from noise which depends on both time and space.
  arXiv  Detail & Related papers  (2023-02-08T01:44:30Z)
• Indication of critical scaling in time during the relaxation of an open quantum system [34.82692226532414]
  Phase transitions correspond to the singular behavior of physical systems in response to continuous control parameters like temperature or external fields. Near continuous phase transitions, associated with the divergence of a correlation length, universal power-law scaling behavior with critical exponents independent of microscopic system details is found.
  arXiv  Detail & Related papers  (2022-08-10T05:59:14Z)
• Photoinduced prethermal order parameter dynamics in the two-dimensional large-$N$ Hubbard-Heisenberg model [77.34726150561087]
  We study the microscopic dynamics of competing ordered phases in a two-dimensional correlated electron model. We simulate the light-induced transition between two competing phases.
  arXiv  Detail & Related papers  (2022-05-13T13:13:31Z)
• Dissipative dynamics of an open quantum battery [0.0]
  Coupling with an external environment inevitably affects the dynamics of a quantum system. We consider how charging performances of a quantum battery, modelled as a two level system, are influenced by the presence of an Ohmic thermal reservoir.
  arXiv  Detail & Related papers  (2020-05-28T14:11:38Z)

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.