Controlling Schwinger tunneling via engineering of virtual particle phases in vacuum
- URL: http://arxiv.org/abs/2505.02882v1
- Date: Mon, 05 May 2025 09:51:47 GMT
- Title: Controlling Schwinger tunneling via engineering of virtual particle phases in vacuum
- Authors: D. D. Su, B. F. Shen, Q. Z. Lv,
- Abstract summary: We show that vacuum tunneling processes can be effectively controlled through electromagnetic potential modulation.<n>This challenges the conventional paradigm that attributes exclusive governance of Schwinger processes to localized ffeld intensities.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: An investigation into Schwinger pair production mechanisms is presented, demonstrating that vacuum tunneling processes can be effectively controlled through electromagnetic potential modulation while maintaining the strong ffelds in the interaction region. This challenges the conventional paradigm that attributes exclusive governance of Schwinger processes to localized ffeld intensities. Through comprehensive analysis of particle number, momentum spectra, and spatial distribution of created pairs, we establish that the observed modulation effects originate from electromagnetic potential - induced modiffcations to the quantum phase structure of virtual particles. This phenomenon reveals a profound connection between Schwinger tunneling dynamics and the geometric phase properties of the quantum vacuum state - a vacuum analogue to the Aharonov-Bohm effect in charged particle systems. This discovery not only advances our understanding of electromagnetic interactions in quantum vacuum but also opens up new experimental opportunities for realizing Schwinger tunneling processes with existing facilities.
Related papers
- Entanglement cones and horizons in analogue cosmological production of Dirac fermions [49.1574468325115]
We study the appearance of fermion condensates for self-interacting Dirac fermions.<n>We show that the combined breakdown of time-reversal symmetry due to the expanding spacetime, and parity due to a pseudo-scalar condensate, manifest through the structure of the light-cone-like propagation of entanglement in this analogue cQFT.
arXiv Detail & Related papers (2025-03-24T22:20:16Z) - Probing false vacuum decay on a cold-atom gauge-theory quantum simulator [1.8075943133358323]
We report an experimental investigation, in a cold-atom quantum simulator, of the effect of the background field on pair production from the infinite-mass vacuum.
We find that the energy spectrum of the time-evolved observables in the zero mass limit displays excitation peaks analogous to bosonic modes in the Schwinger model.
arXiv Detail & Related papers (2024-11-19T15:28:24Z) - Simulating a quasiparticle on a quantum device [0.0]
We propose a variational approach to explore quasiparticle excitations in interacting quantum many-body systems.<n>We benchmark the proposed algorithm via numerical simulations performed on the one-dimension transverse field Ising chain.<n>We show that the localized quasiparticle states constructed with VQE contain accessible information on the full band of quasiparticles.
arXiv Detail & Related papers (2024-09-13T05:39:13Z) - The strongly driven Fermi polaron [49.81410781350196]
Quasiparticles are emergent excitations of matter that underlie much of our understanding of quantum many-body systems.
We take advantage of the clean setting of homogeneous quantum gases and fast radio-frequency control to manipulate Fermi polarons.
We measure the decay rate and the quasiparticle residue of the driven polaron from the Rabi oscillations between the two internal states.
arXiv Detail & Related papers (2023-08-10T17:59:51Z) - Probing the symmetry breaking of a light--matter system by an ancillary
qubit [50.591267188664666]
Hybrid quantum systems in the ultrastrong, and even more in the deep-strong, coupling regimes can exhibit exotic physical phenomena.
We experimentally observe the parity symmetry breaking of an ancillary Xmon artificial atom induced by the field of a lumped-element superconducting resonator.
This result opens a way to experimentally explore the novel quantum-vacuum effects emerging in the deep-strong coupling regime.
arXiv Detail & Related papers (2022-09-13T06:14:08Z) - Tuning long-range fermion-mediated interactions in cold-atom quantum
simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior.
Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z) - Chiral Cavity Quantum Electrodynamics [0.0]
We explore for the first time cavity quantum electrodynamics of a transmon qubit in the topological vacuum of a Harper-Hofstadter topological lattice.
We spectroscopically resolve the individual bulk and edge modes of this lattice, detect vacuum-stimulated Rabi oscillations between the excited transmon and each mode, and thereby measure the synthetic-vacuum-induced Lamb shift of the transmon.
arXiv Detail & Related papers (2021-09-09T22:26:36Z) - Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators.
We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure.
The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
arXiv Detail & Related papers (2021-05-27T18:00:02Z) - Realizing an Unruh-DeWitt detector through electro-optic sampling of the
electromagnetic vacuum [0.0]
We present a new theoretical framework to describe the experimental advances in electro-optic detection of broadband quantum states.
We discuss the specific working regime of such processes, and the consequences through characterization of the quantum light involved in the detection.
arXiv Detail & Related papers (2021-03-26T10:04:07Z) - Detectable Signature of Quantum Friction on a Sliding Particle in Vacuum [58.720142291102135]
We show traces of quantum friction in the degradation of the quantum coherence of a particle.
We propose to use the accumulated geometric phase acquired by a particle as a quantum friction sensor.
The experimentally viable scheme presented can spark renewed optimism for the detection of non-contact friction.
arXiv Detail & Related papers (2021-03-22T16:25:27Z) - Zero-point excitation of a circularly moving detector in an atomic
condensate and phonon laser dynamical instabilities [0.0]
We study a circularly moving impurity in an atomic condensate for realisation of superradiance phenomena in tabletop experiments.
For sufficiently large rotation speeds, the zero-point fluctuations of the phonon field induce a sizeable excitation rate of the detector.
arXiv Detail & Related papers (2020-01-23T16:36:14Z)
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.