Results 51 to 60 of about 1,504,963 (315)
Classical capacity of the lossy bosonic channel: the exact solution
, 2003 The classical capacity of the lossy bosonic channel is calculated exactly. It is shown that its Holevo information is not superadditive, and that a coherent-state encoding achieves capacity. The capacity of far-field, free-space optical communications is
A. S. Holevo +11 more
core +1 more source
Nanophotonic coherent light-matter interfaces based on rare-earth-doped crystals [PDF]
, 2015 Quantum light-matter interfaces (QLMIs) connecting stationary qubits to photons will enable optical networks for quantum communications, precise global time keeping, photon switching, and studies of fundamental physics.
Faraon, Andrei +3 more
core +2 more sources
Spin Laser Local Oscillators for Homodyne Detection in Coherent Optical Communications
Micromachines, 2021 We numerically investigate spin-controlled vertical-cavity surface-emitting lasers (spin-VCSELs) for local oscillators, which are based on an injection locking technique used in coherent optical communications.
N. Yokota, H. Yasaka
semanticscholar +1 more source
Coherent Communication of Classical Messages [PDF]
Physical Review Letters, 2004 We define "coherent communication" in terms of a simple primitive, show it is equivalent to the ability to send a classical message with a unitary or isometric operation, and use it to relate other resources in quantum information theory. Using coherent communication, we are able to generalize super-dense coding to prepare arbitrary quantum states ...
openaire +4 more sources
Synchrotron Radiation for Quantum Technology
Advanced Functional Materials, EarlyView.Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader +10 more
wiley +1 more source
Tomography of a displacement photon counter for discrimination of single-rail optical qubits [PDF]
, 2018 We investigate the performance of a Kennedy receiver, which is known as a beneficial tool in optical coherent communications, to the quantum state discrimination of the two superpositions of vacuum and single photon states corresponding to the $\hat ...
Andersen, Ulrik L. +2 more
core +2 more sources
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Major Accomplishments in 2010 on Optical Fiber Communications
IEEE Photonics Journal, 2011 Optical fiber communications continued to advance at a rapid pace in 2010. This paper presents a brief overview of the most exciting technological advances of 2010, eking out record capacity out of optical fiber through enhancing spectral efficiency and ...
A. E. Willner, Z. Pan, M. I. Hayee
doaj +1 more source
Optimization of Probabilistic Shaping for Nonlinear Fiber Channels with Non-Gaussian Noise
Entropy, 2020 Probabilistic constellation shaping is investigated in the context of nonlinear fiber optic communication channels. Based on a general framework, different link types are considered—1. dispersion-managed channels, 2.
Henrik Enggaard Hansen +3 more
doaj +1 more source
Room temperature plasmon laser by total internal reflection [PDF]
, 2010 Plasmon lasers create and sustain intense and coherent optical fields below light's diffraction limit with the unique ability to drastically enhance light-matter interactions bringing fundamentally new capabilities to bio-sensing, data storage ...
AV Akimov +30 more
core +2 more sources