Light-matter entanglement after above-threshold ionization processes in atoms

• URL: http://arxiv.org/abs/2208.05245v2
• Date: Fri, 26 Aug 2022 14:21:34 GMT
• Title: Light-matter entanglement after above-threshold ionization processes in atoms
• Authors: Javier Rivera-Dean, Philipp Stammer, Andrew S. Maxwell, Theocharis Lamprou, Paraskevas Tzallas, Maciej Lewenstein and Marcelo F. Ciappina
• Abstract summary: We study the entanglement between light and electrons generated in above-threshold ionization process. The amount of entanglement has been studied in terms of the entropy of entanglement. We use the Wigner function of the driving field mode to motivate the entanglement characterization.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Light-matter entanglement plays a fundamental role in many applications of quantum information science. Thus, finding processes where it can be observed is an important task. Here, we address this matter by theoretically investigating the entanglement between light and electrons generated in above-threshold ionization (ATI) process. The study is based on the back-action of the ATI process on the quantum optical state of the system, and its dependence on the kinetic energy and direction of the emitted photoelectrons. Taking into account the dynamics of the process, we demonstrate the creation of hybrid entangled states. The amount of entanglement has been studied in terms of the entropy of entanglement. Additionally, we use the Wigner function of the driving field mode to motivate the entanglement characterization when considering electrons propagating in opposite directions.

Related papers

• Deep quantum Monte Carlo approach for polaritonic chemistry [4.486963578042284]
  We introduce a deep learning variational quantum Monte Carlo method to solve the electronic and photonic Schr"odinger equation of molecules trapped in optical cavities. We extend typical electronic neural network wavefunction ansatzes to describe joint fermionic and bosonic systems, in a quantum Monte Carlo framework.
  arXiv  Detail & Related papers  (2025-03-19T19:00:00Z)
• Thermodynamics of the optical pumping process in Nitrogen-Vacancy centers [0.0]
  We show that the polarization of the electronic spin depends on the amount of work that is provided to the system by the laser pump. We demonstrate that the entropy can be separated into two contributions: one due to the heat produced and the other due to the work provided.
  arXiv  Detail & Related papers  (2025-03-11T18:00:01Z)
• Quantum Effects in Ion Transport: A Thermodynamic Resource Theory Approach [0.0]
  We show that non-Markovianity serves as a key quantum resource that enhances the yield and efficiency of the ion transport process. In contrast, quantum coherence, manifested as the superposition of energy states in ion-transport proteins, reduces these metrics but plays a crucial role in distinguishing between ion channels and ion pumps.
  arXiv  Detail & Related papers  (2024-10-04T12:54:13Z)
• Quantum Optical Aspects of High-Harmonic Generation [0.0]
  The interaction of electrons with strong laser fields is usually treated with semiclassical theory. An analytic method is proposed to answer this question in the framework of nonrelativistic quantum electrodynamics. Our formalism is suitable to analyse, among various quantal effects, the possible role of arbitrary photon statistics of the incoming field.
  arXiv  Detail & Related papers  (2024-07-05T10:47:53Z)
• Extending Non-Perturbative Simulation Techniques for Open-Quantum Systems to Excited-State Proton Transfer and Ultrafast Non-Adiabatic Dynamics [0.0]
  We show how to include a continuous'reaction coordinate' of the proton transfer that allows exact simulations. We also demonstrate how to retain an exact quantum treatment of dissipation and driving effects that could be used to study diverse problems in ultrafast photochemistry.
  arXiv  Detail & Related papers  (2024-05-14T15:26:42Z)
• Probing and harnessing photonic Fermi arc surface states using light-matter interactions [62.997667081978825]
  We show how to image the Fermi arcs by studying the spontaneous decay of one or many emitters coupled to the system's border. We demonstrate that the Fermi arc surface states can act as a robust quantum link.
  arXiv  Detail & Related papers  (2022-10-17T13:17:55Z)
• Optical-cavity mode squeezing by free electrons [0.0]
  We show that the ponderomotive contribution to the electron-cavity interaction can actually create a more general set of optical states. Our work introduces a disruptive approach to the creation of nontrivial quantum cavity states for quantum information and optics applications.
  arXiv  Detail & Related papers  (2022-06-24T10:57:43Z)
• Correlated steady states and Raman lasing in continuously pumped and probed atomic ensembles [68.8204255655161]
  We consider an ensemble of Alkali atoms that are continuously optically pumped and probed. Due to the collective scattering of photons at large optical depth, the steady state of atoms does not correspond to an uncorrelated tensor-product state. We find and characterize regimes of Raman lasing, akin to the model of a superradiant laser.
  arXiv  Detail & Related papers  (2022-05-10T06:54:54Z)
• Light propagation and atom interferometry in gravity and dilaton fields [58.80169804428422]
  We study the modified propagation of light used to manipulate atoms in light-pulse atom interferometers. Their interference signal is dominated by the matter's coupling to gravity and the dilaton. We discuss effects from light propagation and the dilaton on different atom-interferometric setups.
  arXiv  Detail & Related papers  (2022-01-18T15:26:19Z)
• Self-oscillating pump in a topological dissipative atom-cavity system [55.41644538483948]
  We report on an emergent mechanism for pumping in a quantum gas coupled to an optical resonator. Due to dissipation, the cavity field evolves between its two quadratures, each corresponding to a different centrosymmetric crystal configuration. This self-oscillation results in a time-periodic potential analogous to that describing the transport of electrons in topological tight-binding models.
  arXiv  Detail & Related papers  (2021-12-21T19:57:30Z)
• Stochastic Variational Approach to Small Atoms and Molecules Coupled to Quantum Field Modes [55.41644538483948]
  We present a variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED. Examples for a two-dimensional trion and confined electrons as well as for the He atom and the Hydrogen molecule are presented.
  arXiv  Detail & Related papers  (2021-08-25T13:40:42Z)
• Electronic decay process spectra including nuclear degrees of freedom [49.1574468325115]
  We explore the ultra-rapid electronic motion spanning attoseconds to femtoseconds, demonstrating that it is equally integral and relevant to the discipline. The advent of ultrashort attosecond pulse technology has revolutionized our ability to directly observe electronic rearrangements in atoms and molecules.
  arXiv  Detail & Related papers  (2021-02-10T16:51:48Z)
• Control of quantum electrodynamical processes by shaping electron wavepackets [0.0]
  We show that free-electron wave-shaping can be used to engineer quantum interferences that alter the results of scattering processes in quantum electrodynamical processes. As an example, we apply our concept to Bremsstrahlung, a ubiquitous phenomenon that occurs in X-ray sources for state-of-the-art medical imaging.
  arXiv  Detail & Related papers  (2020-11-02T04:01:09Z)

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.