Parametric model for high-order harmonic generation with quantized fields

• URL: http://arxiv.org/abs/2311.01726v1
• Date: Fri, 3 Nov 2023 05:51:42 GMT
• Title: Parametric model for high-order harmonic generation with quantized fields
• Authors: \'Akos Gombk\"ot\H{o}, S\'andor Varr\'o, B\'ela G\'abor Pusztai, Istv\'an Magashegyi, Attila Czirj\'ak, Szabolcs Hack, P\'eter F\"oldi
• Abstract summary: A quantum optical model for the high-order harmonic generation is presented, in which both the exciting field and the high harmonic modes are quantized. The model is independent from the excited material system to a large extent, and allows us to focus on the properties of the electromagnetic fields.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A quantum optical model for the high-order harmonic generation is presented, in which both the exciting field and the high harmonic modes are quantized, while the target material appears via parameters only. As a consequence, the model is independent from the excited material system to a large extent, and allows us to focus on the properties of the electromagnetic fields. Technically, the Hamiltonian known for parametric down-conversion is adopted, where photons in the $n$th harmonic mode are created in exchange of annihilating $n$ photons from the fundamental mode. In our treatment, initially the fundamental mode is in a coherent state corresponding to large photon numbers, while the high harmonic modes are in vacuum state. Due to the interaction, the latter modes get populated while the fundamental one loses photons. Analytical approximations are presented for the time evolution that are verified by numerically exact calculations. For multimode, finite bandwith excitation, the time dependence of the high-order harmonic radiation is also given.

Related papers

• Observation of a Multimode Displaced Squeezed State in High-Harmonic Generation [0.0]
  We show that semiconductor high harmonic generation generates multimode squeezed states of light. The source operates at room temperature with compact lasers, and it could become a useful resource for future applications in quantum technologies.
  arXiv  Detail & Related papers  (2024-11-04T17:37:40Z)
• Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling [83.88591755871734]
  We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. When the frequency of this motion approaches twice the qubit resonance frequency, it induces parametric generation of photons and excitation of the qubits. We develop a comprehensive general theoretical framework that incorporates both perturbative diagrammatic techniques and a rigorous master-equation approach.
  arXiv  Detail & Related papers  (2024-08-30T15:54:33Z)
• Entanglement and squeezing of the optical field modes in high harmonic generation [0.0]
  We show that the joint quantum state of all the optical field modes in the process of high harmonic generation is in general entangled and squeezed. We analyze how the resulting quadrature squeezing in the fundamental laser mode after the interaction can be controlled and explicitly show that all field modes are entangled.
  arXiv  Detail & Related papers  (2023-10-23T15:28:38Z)
• Absence of quantum optical coherence in high harmonic generation [0.0]
  We introduce the notion of quantum optical coherence into high harmonic generation. We show that high harmonics can be generated from incoherent radiation despite having a vanishing electric field.
  arXiv  Detail & Related papers  (2023-09-10T12:16:32Z)
• Quantum emulation of the transient dynamics in the multistate Landau-Zener model [50.591267188664666]
  We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity. Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
  arXiv  Detail & Related papers  (2022-11-26T15:04:11Z)
• Nonclassical light generation and control from laser-driven semiconductor intraband excitations [0.0]
  We investigate the generation of higher-order harmonics from a quantum optics perspective. We find intricate but sufficiently mild modifications of the fundamental mode and coherent displacements. Similar to high-harmonic generation in atoms, all radiation field modes are entangled, allowing for potential novel protocols for quantum information processing.
  arXiv  Detail & Related papers  (2022-11-11T12:59:15Z)
• 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)
• Heisenberg treatment of multiphoton pulses in waveguide QED with time-delayed feedback [62.997667081978825]
  We propose a projection onto a complete set of states in the Hilbert space to decompose the multi-time correlations into single-time matrix elements. We consider the paradigmatic example of a two-level system that couples to a semi-infinite waveguide and interacts with quantum light pulses.
  arXiv  Detail & Related papers  (2021-11-04T12:29:25Z)
• 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)
• Qubit-photon bound states in topological waveguides with long-range hoppings [62.997667081978825]
  Quantum emitters interacting with photonic band-gap materials lead to the appearance of qubit-photon bound states. We study the features of the qubit-photon bound states when the emitters couple to the bulk modes in the different phases. We consider the coupling of emitters to the edge modes appearing in the different topological phases.
  arXiv  Detail & Related papers  (2021-05-26T10:57:21Z)
• A quantum optical description of photon statistics and cross-correlations in high harmonic generation [0.0]
  We present a study of photon statistics associated with high-order harmonic generation (HHG) The aim of the paper is to give insight into the nonclassical properties of high-order harmonic modes.
  arXiv  Detail & Related papers  (2020-04-11T10:10:12Z)

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.