Virtual excitations and quantum correlations in ultra-strongly coupled
harmonic oscillators under intrinsic decoherence
- URL: http://arxiv.org/abs/2205.15251v1
- Date: Mon, 30 May 2022 17:00:52 GMT
- Title: Virtual excitations and quantum correlations in ultra-strongly coupled
harmonic oscillators under intrinsic decoherence
- Authors: Radouan Hab-arrih, Ahmed Jellal, El Hassan El Kinani
- Abstract summary: The Milburn master equation is solved exactly, and the dynamics of virtual ground state excitations are investigated.
The interaction of quantum correlations and virtual excitation was then studied.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We study the intrinsic decoherence of coupled harmonic oscillators. The
Milburn master equation is solved exactly, and the dynamics of virtual ground
state excitations are investigated. The interaction of quantum correlations and
virtual excitation was then studied. The following is a summary of our major
findings. (i) The damped oscillatory profile of all three quantities is the
same. (ii) Ultra-strong coupling combined with huge anisotropy values results
in the reemergence of entanglement and steering. (iii) To sustain entanglement
and steering, virtual excitations are required. (iv) The quantum correlations
are amplified in the quantum synchronous regime. (v) Ultra-strong couplings
cause inherent decoherence to be avoided.
Related papers
- Population Oscillations and Ubiquitous Coherences in multilevel quantum
systems driven by incoherent radiation [0.0]
We show that noise-induced coherences will be generated in all systems with four or more energy eigenstates.
Our findings facilitate the experimental detection of noise-induced coherent dynamics in complex quantum systems.
arXiv Detail & Related papers (2023-09-29T10:42:12Z) - Exceptional point induced quantum phase synchronization and entanglement
dynamics in mechanically coupled gain-loss oscillators [0.0]
This paper investigates how quantum phase synchronization relates to bipartite Gaussian entanglement in coupled gain-loss mechanical oscillators.
We examine the role of exceptional point in a deterministic way of producing self-sustained oscillations that induce robust quantum correlations.
These findings hold promise for applications in phonon-based quantum communication and information processing.
arXiv Detail & Related papers (2023-09-12T18:30:51Z) - 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) - Virtual excitations and entanglement dynamics and polygamy in three
ultra-strongly coupled systems [0.0]
We look at the Milburn dynamics of virtual excitations and how they affect pairwise entanglement.
It is found that the dynamics of excitations and entanglement experience similar profiles against time, physical parameters, and decoherence rate.
arXiv Detail & Related papers (2022-09-29T14:27:52Z) - Quantum vibrational mode in a cavity confining a massless spinor field [91.3755431537592]
We analyse the reaction of a massless (1+1)-dimensional spinor field to the harmonic motion of one cavity wall.
We demonstrate that the system is able to convert bosons into fermion pairs at the lowest perturbative order.
arXiv Detail & Related papers (2022-09-12T08:21:12Z) - Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation.
We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
arXiv Detail & Related papers (2022-07-07T09:39:40Z) - On quantum states generated from interacting oscillators [0.0]
We consider the possibility that one of the oscillators be under the influence of a classical external source.
We show how the problem can be generalized to n linearly interacting oscillators straightforwardly.
arXiv Detail & Related papers (2022-05-10T14:40:04Z) - Intrinsic decoherence dynamics in the three-coupled harmonic oscillators
interaction [77.34726150561087]
We give an explicit solution for the complete equation, i.e., beyond the usual second order approximation used to arrive to the Lindblad form.
arXiv Detail & Related papers (2021-08-01T02:36:23Z) - Quantum asymmetry and noisy multi-mode interferometry [55.41644538483948]
Quantum asymmetry is a physical resource which coincides with the amount of coherence between the eigenspaces of a generator.
We show that the asymmetry may emphincrease as a result of a emphdecrease of coherence inside a degenerate subspace.
arXiv Detail & Related papers (2021-07-23T07:30:57Z) - 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)
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.