Frequency combs with parity-protected cross-correlations from dynamically modulated qubit arrays

• URL: http://arxiv.org/abs/2203.00414v1
• Date: Tue, 1 Mar 2022 13:12:45 GMT
• Title: Frequency combs with parity-protected cross-correlations from dynamically modulated qubit arrays
• Authors: Denis Ilin, Alexander V. Poshakinskiy, Alexander N. Poddubny, Ivan V. Iorsh
• Abstract summary: We develop a general theoretical framework to dynamically engineer quantum correlations in the frequency-comb emission from an array of superconducting qubits in a waveguide. We demonstrate, that when the resonance of the two qubits are periodically modulated with a $pi$ phase shift, it is possible to realize simultaneous bunching and antibunching in cross-correlations of the scattered photons from different sidebands.
• Score: 117.44028458220427
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We develop a general theoretical framework to dynamically engineer quantum correlations in the frequency-comb emission from an array of superconducting qubits in a waveguide, rigorously accounting for the temporal modulation of the qubit resonance frequencies. We demonstrate, that when the resonance frequencies of the two qubits are periodically modulated with a $\pi$ phase shift, it is possible to realize simultaneous bunching and antibunching in cross-correlations of the scattered photons from different sidebands. Our approach, based on the dynamical conversion between the quantum excitations with different parity symmetry, is quite universal. It can be used to control two-particle correlations in generic dynamically modulated dissipative quantum systems.

Related papers

• 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)
• Coulomb-induced synchronization of intersubband coherences in highly doped quantum wells and the formation of giant collective resonances [0.0]
  Many-body Coulomb interactions drastically modify the optical response of highly doped semiconductor quantum wells. We show that this effect is due to Coulomb-induced synchronization of the oscillations of coherences of all $N$ intersubband transitions.
  arXiv  Detail & Related papers  (2023-03-13T17:42:55Z)
• Resonant Parametric Photon Generation in Waveguide-coupled Quantum Emitter Arrays [83.88591755871734]
  We have developed a theory of parametric photon generation in the waveguides coupled to arrays of quantum emitters with temporally modulated resonance frequencies. Such generation can be interpreted as a dynamical Casimir effect. We demonstrate numerically and analytically how the emission directionality and photon-photon correlations can be controlled by the phases of the modulation.
  arXiv  Detail & Related papers  (2023-02-24T18:07:49Z)
• 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)
• Dynamics and control of entangled electron-photon states in nanophotonic systems with time-variable parameters [0.0]
  We study the dynamics of strongly coupled nanophotonic systems with time-variable parameters. In particular, we demonstrate protocols for switching on and off the entanglement between the fermionic and photonic degrees of freedom.
  arXiv  Detail & Related papers  (2020-11-01T01:13:34Z)
• Microwave multiphoton conversion via coherently driven permanent dipole systems [68.8204255655161]
  We investigate a leaking single-mode quantized cavity field coupled with a resonantly driven two-level system possessing permanent dipoles. The frequencies of the interacting subsystems are being considered very different, e.g., microwave ranges for the cavity and optical domains for the frequency of the two-level emitter, respectively.
  arXiv  Detail & Related papers  (2020-08-12T16:20:44Z)
• Superradiant Switching, Quantum Hysteresis, and Oscillations in a Generalized Dicke Model [0.0]
  A first-order phase transition to coexisting normal and superradiant phases is observed, corresponding with the emergence of switching dynamics. We show that this phase coexistence gives rise to a loop also for the quantum mechanical system.
  arXiv  Detail & Related papers  (2020-07-27T02:11:53Z)
• Synchronisation phase as an indicator of persistent quantum correlations between subsystems [68.8204255655161]
  Spontaneous synchronisation is a collective phenomenon that can occur in both dynamical classical and quantum systems. We show that our analysis applies to a variety of spontaneously synchronising open quantum systems.
  arXiv  Detail & Related papers  (2020-06-29T17:21:32Z)
• Coherent control of quantum and entanglement dynamics via periodic modulations in optomechanical semi-conductor resonator coupled to quantum-dot excitons [0.0]
  We study the influence of simultaneously modulating the input laser intensity and quantum dot (QD) resonance frequecy on the mean-field dynamics. A remarkably high degree of entanglement can be achieved by modulating only the QD frequency. This study opens up new possibilities for optimal control strategies and can be used for data signal transfer and storage in quantum communication platforms.
  arXiv  Detail & Related papers  (2020-06-20T04:17:41Z)

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.