Results 21 to 30 of about 18,349,524 (294)

Photonic quantum chromodynamics

open access: yesFrontiers in Physics, 2023
Twisted photons with finite orbital angular momentum have a distinct mode profile with topological charge at the center of the mode while propagating in a certain direction.
Shinichi Saito
doaj   +1 more source

Quantum cryptography with coherent states [PDF]

open access: yesPhysical Review A, 1995
20 pp. Revtex, Figures available from the authors upon request, To be published in PRA (March 95)
Huttner, B.   +3 more
openaire   +3 more sources

SU(2) symmetry of coherent photons and application to Poincaré rotator

open access: yesFrontiers in Physics, 2023
Lie algebra is a hidden mathematical structure behind various quantum systems realised in nature. Here, we consider SU(2) wavefunctions for polarisation states of coherent photons emitted from a laser source, and discuss the relationship to spin ...
Shinichi Saito
doaj   +1 more source

DYNAMICS OF GENERALIZED COHERENT STATES [PDF]

open access: yesModern Physics Letters B, 1995
We show that generalized coherent states follow Schrödinger dynamics in time-dependent potentials. The normalized wave-packets follow a classical evolution without spreading; in turn, the Schrödinger potential depends on the state through the classical trajectory.
DE MARTINO, Salvatore   +2 more
openaire   +3 more sources

Heterogeneity in M. tuberculosis β-lactamase inhibition by Sulbactam

open access: yesNature Communications, 2023
For decades, researchers have elucidated essential enzymatic functions on the atomic length scale by tracing atomic positions in real-time. Our work builds on possibilities unleashed by mix-and-inject serial crystallography (MISC) at X-ray free electron ...
Tek Narsingh Malla   +28 more
doaj   +1 more source

Spin and orbital angular momentum of coherent photons in a waveguide

open access: yesFrontiers in Physics, 2023
Spin angular momentum of a photon corresponds to a polarisation degree of freedom of lights, and such that various polarisation properties are coming from macroscopic manifestation of quantum-mechanical properties of lights.
Shinichi Saito
doaj   +1 more source

DIFFUSION PROCESSES AND COHERENT STATES [PDF]

open access: yesModern Physics Letters B, 1994
It is shown that uncertanity relations, as well as coherent and squeezed states, are structural properties of stochastic processes with Fokker–Planck dynamics. The quantum mechanical coherent and squeezed states are explicitly constructed via Nelson stochastic quantization.
DE MARTINO, Salvatore   +3 more
openaire   +2 more sources

Simplification of the Gram Matrix Eigenvalue Problem for Quadrature Amplitude Modulation Signals

open access: yesEntropy, 2022
In quantum information science, it is very important to solve the eigenvalue problem of the Gram matrix for quantum signals. This allows various quantities to be calculated, such as the error probability, mutual information, channel capacity, and the ...
Ryusuke Miyazaki   +2 more
doaj   +1 more source

Coherent absorption of N00N states [PDF]

open access: yesConference on Lasers and Electro-Optics, 2016
Recent results in deeply subwavelength thickness films demonstrated coherent control and logical gate operations with both classical and single photon light sources. However, quantum processing and devices typically involve more than one photon and non-trivial input quantum states.
Roger, Thomas   +7 more
openaire   +11 more sources

Coherent-state functional integral approach to coupled fermion-boson systems.

open access: yes, 1993
Coherent-state functional integral approach to coupled fermion-boson ...
Jianbo. Zhang (7977140)
core   +3 more sources

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