Genuine non-Gaussian entanglement of light and quantum coherence for an atom from noisy multiphoton spin-boson interactions
- URL: http://arxiv.org/abs/2403.10207v1
- Date: Fri, 15 Mar 2024 11:15:31 GMT
- Title: Genuine non-Gaussian entanglement of light and quantum coherence for an atom from noisy multiphoton spin-boson interactions
- Authors: Pradip Laha, P. A. Ameen Yasir, Peter van Loock,
- Abstract summary: entanglement and quantum coherence play a central role in advancing quantum technologies.
Here we consider the two-mode multiphoton Jaynes-Cummings (MPJC) model.
We show how entanglement and quantum coherence can be optimally generated and subsequently manipulated with it.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Harnessing entanglement and quantum coherence plays a central role in advancing quantum technologies. In quantum optical light-atom platforms, these two fundamental resources are often associated with a Jaynes-Cummings model description describing the coherent exchange of a photon between an optical resonator mode and a two-level spin. In a generic nonlinear spin-boson system, more photons and more modes will take part in the interactions. Here we consider such a generalisation -- the two-mode multiphoton Jaynes-Cummings (MPJC) model. We show how entanglement and quantum coherence can be optimally generated and subsequently manipulated with it in experimentally accessible parameter regimes. A detailed comparative analysis of this model reveals that nonlinearities within the MPJC interactions produce genuinely non-Gaussian entanglement, devoid of Gaussian contributions, from noisy resources. More specifically, strong coherent sources may be replaced by weaker, incoherent ones, significantly reducing the resource overhead, though at the expense of reduced efficiency. At the same time, increasing the multiphoton order of the MPJC interactions expedites the entanglement generation process, thus rendering the whole generation scheme again more efficient and robust. We further explore the use of additional dispersive spin-boson interactions and Kerr nonlinearities in order to create spin coherence solely from incoherent sources and to enhance the quantum correlations, respectively. As for the latter, somewhat unexpectedly, there is not necessarily an increase in quantum correlations due to the augmented nonlinearity. Towards possible applications of the MPJC model, we demonstrate how to engineer arbitrary NOON states with appropriately chosen experimental parameters.
Related papers
- Harnessing spontaneous emission of correlated photon pairs from ladder-type giant atoms [5.498509152557573]
We show that a ladder-type three-level giant atom spontaneously emits strongly correlated photon pairs with high efficiency.
By encoding local phases into the optimal coupling sequence, directional two-photon correlated transfer can be achieved.
Such correlated photon pairs have great potential applications for quantum information processing.
arXiv Detail & Related papers (2024-06-18T09:03:00Z) - How single-photon nonlinearity is quenched with multiple quantum
emitters: Quantum Zeno effect in collective interactions with $\Lambda$-level
atoms [49.1574468325115]
We show that the single-photon nonlinearity vanishes with the number of emitters.
The mechanism behind this behavior is the quantum Zeno effect, manifested in the slowdown of the photon-controlled dynamics.
arXiv Detail & Related papers (2024-01-13T06:55:18Z) - Violation of Bell inequality by photon scattering on a two-level emitter [4.810881229568956]
Entanglement, the non-local correlations present in quantum systems, is a curious feature of quantum mechanics and the fuel of quantum technology.
We show how a single two-level emitter deterministically coupled to light in a nanophotonic waveguide is used to realize genuine photonic quantum entanglement for excitation at the single photon level.
arXiv Detail & Related papers (2023-06-22T11:01:24Z) - Engineering cubic quantum nondemolition Hamiltonian with mesoscopic
optical parametric interactions [0.0]
We show that strongly squeezed fundamental and second harmonic fields propagating in a $chi(2)$ nonlinear medium evolve under a cubic QND Hamiltonian.
Our scheme can be highly tolerant against overall detection inefficiency with an auxiliary high-gain phase-sensitive optical amplifier.
arXiv Detail & Related papers (2023-05-05T03:23:36Z) - Switching classical and quantum nonreciprocities with spinning photonics [0.9419294043578184]
We show how to achieve, manipulate, and switch classical or quantum nonreciprocal effects of light with a spinning Kerr resonator.
The possibility to switch a single device between a classical isolator and a purely quantum directional system can provide more functions for nonreciprocal materials.
arXiv Detail & Related papers (2023-03-31T12:18:17Z) - Tunable photon-mediated interactions between spin-1 systems [68.8204255655161]
We show how to harness multi-level emitters with several optical transitions to engineer photon-mediated interactions between effective spin-1 systems.
Our results expand the quantum simulation toolbox available in cavity QED and quantum nanophotonic setups.
arXiv Detail & Related papers (2022-06-03T14:52:34Z) - Onset of non-Gaussian quantum physics in pulsed squeezing with
mesoscopic fields [1.2252572522254723]
We study the emergence of non-Gaussian quantum features in pulsed squeezed light generation with a mesoscopic number of pump photons.
We argue that the state of the art in nonlinear nanophotonics is quickly approaching this regime.
arXiv Detail & Related papers (2021-11-27T02:49:10Z) - Designing Kerr Interactions for Quantum Information Processing via
Counterrotating Terms of Asymmetric Josephson-Junction Loops [68.8204255655161]
static cavity nonlinearities typically limit the performance of bosonic quantum error-correcting codes.
Treating the nonlinearity as a perturbation, we derive effective Hamiltonians using the Schrieffer-Wolff transformation.
Results show that a cubic interaction allows to increase the effective rates of both linear and nonlinear operations.
arXiv Detail & Related papers (2021-07-14T15:11:05Z) - Quantum Borrmann effect for dissipation-immune photon-photon
correlations [137.6408511310322]
We study theoretically the second-order correlation function $g(2)(t)$ for photons transmitted through a periodic Bragg-spaced array of superconducting qubits, coupled to a waveguide.
We demonstrate that photon bunching and anti-bunching persist much longer than both radiative and non-radiative lifetimes of a single qubit.
arXiv Detail & Related papers (2020-09-29T14:37:04Z) - Frequency-resolved photon correlations in cavity optomechanics [58.720142291102135]
We analyze the frequency-resolved correlations of the photons being emitted from an optomechanical system.
We discuss how the time-delayed correlations can reveal information about the dynamics of the system.
This enriched understanding of the system can trigger new experiments to probe nonlinear phenomena in optomechanics.
arXiv Detail & Related papers (2020-09-14T06:17:36Z) - Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
Integrated photonics is a robust platform for quantum information processing.
Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive.
Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
arXiv Detail & Related papers (2020-05-19T16:46:44Z)
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.