Results 51 to 60 of about 11,337,371 (328)

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

Number state filtered coherent states

open access: yesQuantum Information Processing, 2018
Number state filtering in coherent states leads to sub-Poissonian photon statistics. These states are more suitable for phase estimation when compared with the coherent states. Nonclassicality of these states is quantified in terms of the negativity of the Wigner function and the entanglement potential.
Meher, Nilakantha, Sivakumar, S.
openaire   +2 more sources

Coherent-state-induced transparency [PDF]

open access: yes, 2016
We examine electromagnetically induced transparency (EIT) in an ensemble of cold $\Lambda-$type atoms induced by a quantum control field in multi-mode coherent states and compare it with the transparency created by the classical light of the same ...
A. Gogyan, Y. Malakyan
semanticscholar   +1 more source

Optical generation of hybrid entangled state via entangling single-photon-added coherent state [PDF]

open access: yes, 2005
We propose a feasible scheme to realize the optical entanglement of single-photon-added coherent state (SPACS) and show that, besides the Sanders entangled coherent state, the entangled SPACS also leads to new forms of hybrid entanglement of quantum Fock
Agarwal G S   +6 more
core   +1 more source

Quantum teleportation between a single-rail single-photon qubit and a coherent-state qubit using hybrid entanglement under decoherence effects [PDF]

open access: yesQuantum Information Processing, 2015
We study quantum teleportation between two different types of optical qubits using hybrid entanglement as a quantum channel under decoherence effects.
Hyunseok Jeong   +2 more
semanticscholar   +1 more source

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

Generating coherent state of entangled spins [PDF]

open access: yes, 2011
A coherent state of many spins contains quantum entanglement which increases with a decrease in the collective spin value. We present a scheme to engineer this class of pure state based on incoherent spin pumping with a few collective raising/lowering ...
Luo, Yu, Yao, Wang, Yu, Hongyi
core   +2 more sources

Special theory of relativity for a graded index fibre

open access: yesFrontiers in Physics, 2023
The speed of light (c) in a vacuum is independent of the choice of frames to describe the propagation, according to the theory of relativity. We consider how light is characterised in a material, where the speed of light is different from that in a ...
Shinichi Saito
doaj   +1 more source

Dynamics of entanglement for coherent excitonic states in a system of two coupled quantum dots and cavity QED [PDF]

open access: yes, 2002
The dynamics of the entanglement for coherent excitonic states in the system of two coupled large semiconductor quantum dots ($R/a_{B}\gg 1$) mediated by a single-mode cavity field is investigated.
A. Barenco   +37 more
core   +2 more sources

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