Heisenberg treatment of multiphoton pulses in waveguide QED with
time-delayed feedback
- URL: http://arxiv.org/abs/2111.02816v2
- Date: Tue, 23 Aug 2022 10:20:34 GMT
- Title: Heisenberg treatment of multiphoton pulses in waveguide QED with
time-delayed feedback
- Authors: Kisa Barkemeyer, Andreas Knorr, and Alexander Carmele
- Abstract summary: 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.
- Score: 62.997667081978825
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The dynamics of waveguide-QED systems involving coherent time-delayed
feedback give rise to a hierarchy of multi-time correlations within the
Heisenberg picture due to the induced non-Markovianity. We propose to perform a
projection onto a complete set of states in the Hilbert space to decompose the
multi-time correlations into single-time matrix elements. To illustrate the
procedure, we consider the paradigmatic example of a two-level system that
couples to a semi-infinite waveguide and interacts with quantum light pulses.
Our approach complements the range of available methods as it allows
calculating the dynamics under the inclusion of additional dissipation channels
in a numerically exact and efficient manner for multiphoton pulses of arbitrary
shape where memory requirements are known in advance.
Related papers
- Generation of time-frequency entangled photon pairs propagating in
separate waveguides in circuit QED setup [0.0]
We propose a generic cavity QED setup designed for on-demand generation of time-frequency entangled photon pairs.
We numerically solve the set of equations of motion governing the evolution of the quantum state of the system.
We compute the entanglement entropy analyzing its dependence on the system parameters.
arXiv Detail & Related papers (2022-07-17T21:09:44Z) - 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) - Frequency combs with parity-protected cross-correlations from
dynamically modulated qubit arrays [117.44028458220427]
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.
arXiv Detail & Related papers (2022-03-01T13:12:45Z) - Quantum Trajectory Theory and Simulations of Nonlinear Spectra and
Multi-Photon Effects in Waveguide-QED Systems with a Time-Delayed Coherent
Feedback [0.0]
We study the nonlinear spectra and multi-photon correlation functions for the waveguide output of a two-level system.
We compute these observables by extending a recent quantum trajectory discretized-waveguide (QTDW) approach.
arXiv Detail & Related papers (2021-10-18T14:46:45Z) - Modelling quantum light-matter interactions in waveguide-QED with
retardation and a time-delayed feedback: matrix product states versus a
space-discretized waveguide model [0.0]
We present two methods for modelling non-Markovian quantum light-matter interactions in waveguide QED systems.
We compare and contrast these methods on three topical problems of interest in waveguide-QED.
We highlight the advantages and disadvantages of these methods for modelling waveguide QED interactions.
arXiv Detail & Related papers (2020-11-24T16:54:53Z) - 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) - Waveguide quantum optomechanics: parity-time phase transitions in
ultrastrong coupling regime [125.99533416395765]
We show that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction.
The combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (PT) symmetry.
The $mathcalPT$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
arXiv Detail & Related papers (2020-07-04T11:02:20Z) - Remotely projecting states of photonic temporal modes [0.0]
We show remote spectral shaping of single photon states and probe the coherence properties of two-photon quantum correlations in the time-frequency domain.
We control the temporal mode structure between the generated photon pairs and show remote state-projections over a range of time-frequency mode superpositions.
arXiv Detail & Related papers (2020-04-22T22:38:46Z) - Coupling colloidal quantum dots to gap waveguides [62.997667081978825]
coupling between single photon emitters and integrated photonic circuits is an emerging topic relevant for quantum information science and other nanophotonic applications.
We investigate the coupling between a hybrid system of colloidal quantum dots and propagating gap modes of a silicon nitride waveguide system.
arXiv Detail & Related papers (2020-03-30T21:18:27Z) - Theory of waveguide-QED with moving emitters [68.8204255655161]
We study a system composed by a waveguide and a moving quantum emitter in the single excitation subspace.
We first characterize single-photon scattering off a single moving quantum emitter, showing both nonreciprocal transmission and recoil-induced reduction of the quantum emitter motional energy.
arXiv Detail & Related papers (2020-03-20T12:14:10Z)
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.