Results 61 to 70 of about 80,457 (267)

Quantumness of correlations in nanomaterials—experimental evidence and unconventional effects

open access: yesAIMS Materials Science, 2022
Quantum correlations phenomena, such as entanglement, quantum discord and quantum coherence, are ubiquitous effects caused by interactions between physical systems—such as electrons and ions in a piece of metal, or H atoms/molecules adsorbed in ...
C. Aris Chatzidimitriou-Dreismann
doaj   +1 more source

Quantum decoherence in noninertial frames

open access: yes, 2010
Quantum decoherence, which appears when a system interacts with its environment in an irreversible way, plays a fundamental role in the description of quantum-to-classical transitions and has been successfully applied in some important experiments. Here,
D. Bouwmeester   +7 more
core   +1 more source

Measures of decoherence [PDF]

open access: yesSPIE Proceedings, 2003
Methods for quantifying environmentally induced decoherence in quantum systems are investigated. We formulate criteria for measuring the degree of decoherence and consider several representative examples, including a spin interacting with the modes of a bosonic, e.g., phonon, bath.
Fedichkin, Leonid   +2 more
openaire   +2 more sources

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced 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

Transverse decoherence and coherent spectra in long bunches with space charge

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2012
The transverse bunch spectrum and the transverse decoherence/recoherence following an initial bunch offset are important phenomena in synchrotrons and storage rings, and are widely used for beam and lattice measurements.
Vladimir Kornilov   +1 more
doaj   +1 more source

Realization of universal nonadiabatic geometric control on decoherence-free qubits in the XY model

open access: yes, 2017
A fundamental requirement of quantum information processing is the protection from the adverse effects of decoherence and noise. Decoherence-free subspaces and geometric processing are important steps of quantum information protection. Here, we provide a
Mousolou, Vahid Azimi
core   +1 more source

Cooperating or Fighting with Decoherence in the Optimal Control of Quantum Dynamics [PDF]

open access: yes, 2006
This paper explores the use of laboratory closed-loop learning control to either fight or cooperate with decoherence in the optimal manipulation of quantum dynamics.
Braun D.   +8 more
core   +2 more sources

Quantum‐Grade Nanodiamonds from a Single‐Step, Industrial‐Scale Pressure and Temperature Process

open access: yesAdvanced Functional Materials, EarlyView.
Novel method for creation of nitrogen‐vacancy centers in 50‐nm nanodiamonds based on high‐temperature plastic deformation is demonstrated. Compared to the electron irradiation approach, it yields nitrogen‐vacancy centers with significantly improved charge stability, T1 relaxation time, and optical Rabi contrast.
Yahua Bao   +17 more
wiley   +1 more source

Quantum security and theory of decoherence

open access: yesNew Journal of Physics, 2022
We sketch a relation between two crucial, yet independent, fields in quantum information research, viz. quantum decoherence and quantum cryptography. We investigate here how the standard cryptographic assumption of shielded laboratory, stating that data ...
P Mironowicz
doaj   +1 more source

Notes on Decoherence at Absolute Zero

open access: yes, 1999
The problem of electron decoherence at low temperature is analyzed from the perspective of recent experiments on decoherence rate measurement and on related localization phenomena in low-dimensional systems. Importance of decoherence at zero temperature,
Abrahams   +51 more
core   +1 more source

Home - About - Disclaimer - Privacy