scholarly journals Two-photon state selection and angular momentum polarization probed by velocity map imaging: Application to H atom photofragment angular distributions from the photodissociation of two-photon state selected HCl and HBr

2004 ◽  
Vol 121 (23) ◽  
pp. 11802-11809 ◽  
Author(s):  
Sergei Manzhos ◽  
Constantin Romanescu ◽  
Hans-Peter Loock ◽  
Jonathan G. Underwood
Keyword(s):  
Angular Momentum ◽  
Angular Distributions ◽  
Velocity Map Imaging ◽  
Photon State ◽  
Two Photon ◽  
Imaging Application ◽  
State Selection

scholarly journals Orbital angular momentum uncertainty relations of entangled two-photon states

2021 ◽  
Vol 75 (8) ◽  
Author(s):  
Wei Li ◽  
Shengmei Zhao
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Composite System ◽  
Entangled State ◽  
Uncertainty Relations ◽  
Epr Paradox ◽  
Photon State ◽  
Two Photon ◽  
Einstein Podolsky Rosen ◽  
Photon States

Abstract The inseparability of quantum correlation requires that the particles in the composite system be treated as a whole rather than treated separately, a typical example is the Einstein–Podolsky–Rosen (EPR) paradox. In this paper, we provide a theoretical study on the uncertainty relations of two kinds of bipartite observables in two-photon orbital angular momentum (OAM) entanglement, that is, the relative distance and centroid of the two photons at azimuth. We find that the uncertainty relations of the bipartite observables holds in any two-photon state, and they are separable in two-photon OAM entanglement. In addition, the entangled state behaves as a single particle in the bipartite representation. Finally, we find that the uncertainty relations of the bipartite observables can be used to manipulate the degree of the entanglement of an EPR state. Graphic abstract

scholarly journals Quantum discord of thermal two-photon orbital angular momentum state: mimicking teleportation to transmit an image

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Lixiang Chen
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Quantum Discord ◽  
Single Photon ◽  
Image Transmission ◽  
Quantum Correlations ◽  
Optical Image ◽  
Photon State ◽  
Two Photon ◽  
Angular Momentum State

AbstractWe formulate a density matrix to fully describe two-photon state within a thermal light source in the photon orbital angular momentum (OAM) Hilbert space. We prove the separability, i.e., zero entanglement of the thermal two-photon state. Still, we reveal the hidden quantum correlations in terms of geometric measures of discord. By mimicking the original protocol of quantum teleportation, we demonstrate that the non-zero quantum discord can be utilized to transmit a high-dimensional OAM state at the single-photon level. It is found that albeit the low fidelity of teleportation due to the inherent component of maximally mixed state, the information of all parameters that characterize the original state can still be extracted from the teleported one. Besides, we demonstrate that the multiple repetitions of the protocol, enable the transmission of a complex-amplitude light field, e.g., an optical image, regardless of being accompanied with a featureless background. We also distinguish our scheme of optical image transmission from that of ghost imaging.

Preparation of two-photon fluorescent probe and biological imaging application in cells

2016 ◽  
Vol 14 (6) ◽  
pp. 061603-61607 ◽  
Author(s):  
Shuheng Chi Shuheng Chi ◽  
Liang Li Liang Li ◽  
and Yiqun Wu and Yiqun Wu
Keyword(s):  
Fluorescent Probe ◽  
Biological Imaging ◽  
Two Photon ◽  
Imaging Application ◽  
In Cells
Sign in / Sign up

Export Citation Format

Share Document