Related papers: Two-mode photon-added entangled coherent states and their entanglement properties

Two-mode photon-added entangled coherent states and their entanglement properties

URL: http://arxiv.org/abs/2304.05400v1
Date: Tue, 11 Apr 2023 08:50:51 GMT
Title: Two-mode photon-added entangled coherent states and their entanglement properties
Authors: Arpita Chatterjee
Abstract summary: An entangled quantum state is considered by applying a local photon excitation to each mode of an entangled coherent state. It is shown that applying a photon addition can improve the amount of entanglement.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: An entangled quantum state is considered by applying a local photon excitation to each mode of an entangled coherent state. The entanglement property is investigated in terms of the entropy of entanglement. It is shown that applying a photon addition can improve the amount of entanglement. It is also examined that in a specific region of parameters, the state $|{\psi_1^-(\alpha, m, n)}\rangle$ is least entangled when photon excitation is minimum. We study the statistical properties of such states by employing the quasi-probability functions.

Related papers

Spatiotemporal effects in heralded state preparation [0.0]
General expressions are derived for single-photo-subn-tracted and single-photo-n-added states. The Wigner functional approach reveals the importance of thetemporal transformations imposed by the experimental conditions.
arXiv Detail & Related papers (2024-04-08T07:08:10Z)
Nonclassicality of photon-added-then-subtracted and photon-subtracted-then-added states [0.0]
We formulate the density matrices of a quantum state obtained by first adding multi-photons to and then subtracting multi-photons from any arbitrary state. Considering the field to be initially in a thermal (or in an even coherent) state, we evaluate the photon number distribution, Wigner function and Mandel's $Q$ parameter of the resulting field.
arXiv Detail & Related papers (2023-04-11T16:30:15Z)
Entanglement of annihilation photons [141.5628276096321]
We present the results of a new experimental study of the quantum entanglement of photon pairs produced in positron-electron annihilation at rest. Despite numerous measurements, there is still no experimental proof of the entanglement of photons.
arXiv Detail & Related papers (2022-10-14T08:21:55Z)
Two Mode Photon Added Schr\"odinger Cat States: Nonclassicality and Entanglement [0.0]
The concept of photon added two-mode Schr"odinger cat states in which both modes are independent introduced, their non-classical properties and entanglement are studied. We observe that the state approaches the maximum entanglement more rapidly after the addition of photons.
arXiv Detail & Related papers (2022-01-30T21:37:50Z)
Un-symmetric photon subtraction: a method for generating high photon number states and their relevance to loss estimation at ultimate quantum limit [0.0]
We have studied theoretical un-symmetric multi-photon subtracted twin beam state and demonstrated a method for generating states that resembles to high photon number states. A crucial point is high non-classicality is obtained by photon subtraction when mean photons per mode of twin beam state is low.
arXiv Detail & Related papers (2021-10-03T23:28:47Z)
Investigating the coherent state detection probability of InGaAs/InP SPAD-based single-photon detectors [55.41644538483948]
We investigate the probabilities of detecting single- and multi-photon coherent states on InGaAs/InP sine-gated and free-run avalanche diodes. We conclude that multi-photon state detection cannot be regarded as independent events of absorption of individual single-photon states.
arXiv Detail & Related papers (2021-04-16T08:08:48Z)
Superposition of two-mode squeezed states for quantum information processing and quantum sensing [55.41644538483948]
We investigate superpositions of two-mode squeezed states (TMSSs) TMSSs have potential applications to quantum information processing and quantum sensing.
arXiv Detail & Related papers (2021-02-01T18:09:01Z)
Light-matter interactions near photonic Weyl points [68.8204255655161]
Weyl photons appear when two three-dimensional photonic bands with linear dispersion are degenerated at a single momentum point, labeled as Weyl point. We analyze the dynamics of a single quantum emitter coupled to a Weyl photonic bath as a function of its detuning with respect to the Weyl point.
arXiv Detail & Related papers (2020-12-23T18:51:13Z)
Classification of three-photon states in waveguide quantum electrodynamics [77.34726150561087]
We show that the rich interplay of effects from order, chaos to localisation found in two-photon systems extends naturally to three-photon systems. There also exist interaction-induced localised states unique to three-photon systems such as bound trimers, corner states and trimer edge states.
arXiv Detail & Related papers (2020-12-07T23:41:09Z)
Bose-Einstein condensate soliton qubit states for metrological applications [58.720142291102135]
We propose novel quantum metrology applications with two soliton qubit states. Phase space analysis, in terms of population imbalance - phase difference variables, is also performed to demonstrate macroscopic quantum self-trapping regimes.
arXiv Detail & Related papers (2020-11-26T09:05:06Z)
Can we control the amount of useful nonclassicality in a photon added hypergeometric state? [0.0]
We study the role of photon addition, a non-Gaussianity inducing operation, in the enhancement of nonclassicality in a finite dimensional quantum state. In principle, decreasing the dimension of the state is analogous to holeburning and is thus expected to increase nonclassicality.
arXiv Detail & Related papers (2020-07-28T14:34:14Z)

This list is automatically generated from the titles and abstracts of the papers in this site.