Entropy Suppression through Quantum Interference in Electric Pulses

• URL: http://arxiv.org/abs/2211.13347v1
• Date: Wed, 23 Nov 2022 23:27:21 GMT
• Title: Entropy Suppression through Quantum Interference in Electric Pulses
• Authors: Gerald V. Dunne, Adrien Florio, Dmitri E. Kharzeev
• Abstract summary: The entropy of entanglement between particles and antiparticles has been found to be equal to the statistical Gibbs entropy of the produced system. We show that quantum interference suppresses the entanglement entropy of the created quantum state.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The Schwinger process in strong electric fields creates particles and antiparticles that are entangled. The entropy of entanglement between particles and antiparticles has been found to be equal to the statistical Gibbs entropy of the produced system. Here we study the effect of quantum interference in sequences of electric pulses, and show that quantum interference suppresses the entanglement entropy of the created quantum state. This is potentially relevant to quantum-enhanced classical communications. Our results can be extended to a wide variety of two-level quantum systems.

Related papers

• Phonon Dephasing, Entanglement and Exchange-Only Toffoli Gate Sequence in Quantum Dot Spin Chains [0.0]
  Quantum dot spin chain system is vital for quantum simulation and studying collective electron behaviors. Chapter 1 introduces key concepts, focusing on the extended Hubbard model, double quantum dot systems, and electron-phonon coupling. Chapter 3 investigates entanglement entropy in a multielectron quantum dot spin chain described by the extended Hubbard model. Chapter 4 explores operation sequences in a nine-spin, nine-quantum-dot system defined by the Heisenberg model.
  arXiv  Detail & Related papers  (2024-09-23T06:26:08Z)
• Quantum coarsening and collective dynamics on a programmable quantum simulator [27.84599956781646]
  We experimentally study collective dynamics across a (2+1)D Ising quantum phase transition. By deterministically preparing and following the evolution of ordered domains, we show that the coarsening is driven by the curvature of domain boundaries. We quantitatively explore these phenomena and further observe long-lived oscillations of the order parameter, corresponding to an amplitude (Higgs) mode.
  arXiv  Detail & Related papers  (2024-07-03T16:29:12Z)
• Observation of universal dissipative dynamics in strongly correlated quantum gas [7.693218037362169]
  We observe a universal dissipative dynamics in strongly correlated one-dimensional quantum gases. This method could have broad applications in detecting strongly correlated features, including spin-charge separations and Fermi arcs in quantum materials.
  arXiv  Detail & Related papers  (2023-09-19T02:32:02Z)
• 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)
• Dipolar quantum solids emerging in a Hubbard quantum simulator [45.82143101967126]
  Long-range and anisotropic interactions promote rich spatial structure in quantum mechanical many-body systems. We show that novel strongly correlated quantum phases can be realized using long-range dipolar interaction in optical lattices. This work opens the door to quantum simulations of a wide range of lattice models with long-range and anisotropic interactions.
  arXiv  Detail & Related papers  (2023-06-01T16:49:20Z)
• Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
  Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics. We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box. Such states could be realized in the waveguide quantum electrodynamics platform.
  arXiv  Detail & Related papers  (2023-03-17T09:27:02Z)
• Interaction-induced topological pumping in a solid-state quantum system [18.7657779101508]
  Inter-particle interaction can profoundly alter the band structure of quantum many-body systems. Here we demonstrate interaction-induced topological pumping in a solid-state quantum system comprising an array of 36 superconducting qubits.
  arXiv  Detail & Related papers  (2023-03-08T13:57:13Z)
• Universality of critical dynamics with finite entanglement [68.8204255655161]
  We study how low-energy dynamics of quantum systems near criticality are modified by finite entanglement. Our result establishes the precise role played by entanglement in time-dependent critical phenomena.
  arXiv  Detail & Related papers  (2023-01-23T19:23:54Z)
• Quantum information entropy of a particle trapped by the Aharonov-Bohm-type effect [4.8244546750150965]
  We investigate the quantum information entropy of a particle trapped by the Aharonov-Bohm-type effect. For quantum information study, it is necessary to investigate the eigenstates of the quantum system.
  arXiv  Detail & Related papers  (2022-12-19T01:39:17Z)
• Intrinsic Entropy of Squeezed Quantum Fields and Nonequilibrium Quantum Dynamics of Cosmological Perturbations [0.0]
  entropy of cosmological perturbations can be studied by treating them in the framework of squeezed quantum systems. We compute the covariance matrix elements of the parametric quantum field and solve for the evolution of the density matrix elements. We show explicitly why the entropy for the squeezed yet closed system is zero, but is proportional to the particle number produced.
  arXiv  Detail & Related papers  (2021-10-06T13:43:00Z)
• Modified Bohmian quantum potential due to the second quantization of Schrodinger equation [0.0]
  We have dealt with the second quantization of Schrodinger and its effects on the path of a particle. This generalization leads to a modified Schrodinger which affects the particle through a modified quantum potential and a new term in the continuity equation.
  arXiv  Detail & Related papers  (2020-06-15T15:05:34Z)

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.