Quantum Energy Teleportation under Equilibrium and Nonequilibrium Environments

• URL: http://arxiv.org/abs/2511.01518v1
• Date: Mon, 03 Nov 2025 12:28:39 GMT
• Title: Quantum Energy Teleportation under Equilibrium and Nonequilibrium Environments
• Authors: Xiaokun Yan, Kun Zhang, Jin Wang,
• Abstract summary: Quantum energy teleportation (QET) enables carrier-free energy transfer by exploiting quantum resources.<n>We study QET performance in a two-qubit system coupled to equilibrium or nonequilibrium reservoirs.<n>We find that the energy output for mixed states often follows that of the eigenstate with the highest population.
• Score: 8.771711255026975
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum energy teleportation (QET), implemented via local operations and classical communication, enables carrier-free energy transfer by exploiting quantum resources. While QET has been extensively studied theoretically and validated experimentally in various quantum platforms, enhancing energy output for mixed initial states, as the system inevitably interacts with environments, remains a significant challenge. In this work, we study QET performance in a two-qubit system coupled to equilibrium or nonequilibrium reservoirs. We derive an analytical expression for the energy output in terms of the system Hamiltonian eigenstates, enabling analysis of energy output for mixed states. Using the Redfield master equation, we systematically examine the effects of qubit detuning, nonequilibrium temperature difference, and nonequilibrium chemical potential difference on the energy output. We find that the energy output for mixed states often follows that of the eigenstate with the highest population, and that nonequilibrium environments can enhance the energy output in certain parameter regimes.

Related papers

• Fluctuations and Irreversibility: Historical and Modern Perspectives [23.10276706709171]
  This article traces the development of fluctuation theory and its deep connection to irreversibility.<n>We highlight recent advances by linking quantum fluctuation theorems with linear response theory.<n>Understanding quantum fluctuations is essential for clarifying the foundations of irreversibility.
  arXiv  Detail & Related papers  (2025-12-26T12:15:30Z)
• Non-positive energy quasidistributions in coherent collision models [0.0]
  We determine the Kirkwood-Dirac quasiprobability (KDQ) distribution associated to instances of internal energy variations for the quantum system and environment particles.<n>Using this nonequilibrium-physics approach, we certify the conditions under which the collision process of the model exhibits quantum traits.<n>We quantify the rate of energy exchanged by the quantum system by looking at the variance of the KDQ energy distributions.
  arXiv  Detail & Related papers  (2025-03-10T18:26:23Z)
• Formalizing, Normalizing, and Splitting the Energy Network Re-Dispatch for Quantum Annealing [37.81697222352684]
  Adiabatic quantum computation (AQC) is a well-established method to approximate the ground state of a quantum system. In this work, we investigate issues in the context of energy network re-dispatch problems. Our results are compared to baselines from an open-source energy network simulation.
  arXiv  Detail & Related papers  (2024-09-15T20:29:40Z)
• Suppression of quantum dissipation: A cooperative effect of quantum squeezing and quantum measurement [22.051290654737976]
  We propose a scheme for beating environment-induced dissipation in an open two-level system coupled to a parametrically driven cavity. We demonstrate that, in the presence of the cooperation, the system dynamics can be completely dominated by the effective system-cavity interaction. This work provides a generic method of dissipation suppression in a variety of quantum mechanical platforms, including natural atoms and superconducting circuits.
  arXiv  Detail & Related papers  (2024-07-12T15:10:44Z)
• Universal energy fluctuations in inelastic scattering processes [0.0]
  We uncover universal relations for the energy fluctuations of a quantum system scattering inelastically with a particle at arbitrary kinetic energies. We find that energy releasing processes are dominant when the kinetic energy of the particle is comparable to the system energies. Our work provides a unified view of energy fluctuations when the source driving the system is not macroscopic but rather an auxiliary quantum particle in a scattering process.
  arXiv  Detail & Related papers  (2024-04-07T11:32:14Z)
• Thermodynamics of the quantum Mpemba effect [0.0]
  We show that an exponential speedup to equilibrium will always occur if the state is transformed to a diagonal state in the energy eigenbasis. When the transformed state has a higher nonequilibrium free energy, we argue using thermodynamic reasoning that this is a textitgenuine quantum Mpemba effect.
  arXiv  Detail & Related papers  (2024-03-25T17:18:23Z)
• Observation of a finite-energy phase transition in a one-dimensional quantum simulator [39.899531336700136]
  We show the first experimental demonstration of a finite-energy phase transition in 1D. By preparing initial states with different energies in a 1D trapped-ion quantum simulator, we study the finite-energy phase diagram of a long-range interacting quantum system.
  arXiv  Detail & Related papers  (2023-10-30T18:00:01Z)
• Thermodynamics of adiabatic quantum pumping in quantum dots [50.24983453990065]
  We consider adiabatic quantum pumping through a resonant level model, a single-level quantum dot connected to two fermionic leads. We develop a self-contained thermodynamic description of this model accounting for the variation of the energy level of the dot and the tunnelling rates with the thermal baths.
  arXiv  Detail & Related papers  (2023-06-14T16:29:18Z)
• Measurement Induced Synthesis of Coherent Quantum Batteries [0.0]
  We propose a conditional synthesis of $N$ independent two-level systems (TLS) with partial quantum coherence obtained from an environment to one coherent system. The measurement process acts here as a Maxwell demon synthesizing the coherent energy of individual TLS to one large coherent quantum battery.
  arXiv  Detail & Related papers  (2022-11-16T12:33:34Z)
• Measurement of work and heat in the classical and quantum regimes [0.0]
  We use the IBMQ quantum computer to implement the driven system's dynamics in a dissipative environment. We observe a reduction of the pure quantum features of the energy exchange processes that we interpret as the emergence of the classical limit.
  arXiv  Detail & Related papers  (2021-02-02T14:00:25Z)
• Quantum Non-equilibrium Many-Body Spin-Photon Systems [91.3755431537592]
  dissertation concerns the quantum dynamics of strongly-correlated quantum systems in out-of-equilibrium states. Our main results can be summarized in three parts: Signature of Critical Dynamics, Driven Dicke Model as a Test-bed of Ultra-Strong Coupling, and Beyond the Kibble-Zurek Mechanism.
  arXiv  Detail & Related papers  (2020-07-23T19:05:56Z)

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.