Gravitational decoherence of dark matter
- PhysicsJournal of Cosmology and Astroparticle Physics
Decoherence describes the tendency of quantum sub-systems to dynamically lose their quantum character. This happens when the quantum sub-system of interest interacts and becomes entangled with an…
Adiabatic quantum decoherence in many non-interacting subsystems induced by the coupling with a common boson bath
- PhysicsAnnals of Physics
Dissipative dynamics of quantum correlation quantifiers under decoherence channels
- PhysicsThe European Physical Journal Plus
In this work, we investigate the dynamics of quantum correlations captured by entropic and geometric measures of discord under the influence of dissipative channels for widely used two qubit X state…
Quantum gravitational decoherence from fluctuating minimal length and deformation parameter at the Planck scale
- PhysicsNature communications
A scheme of gravitational decoherence due to quantum gravity effects is introduced and it is found that theDecoherence rate predicted by the model is extremal, being minimal in the deep quantum regime below the Planck scale and maximal in the mesoscopic regime beyond it.
Decoherence from general relativity
- PhysicsPhysical Review D
It is of great interest to explore matter in nontrivial quantum arrangements, including Schrödinger cat-like states. Such states are sensitive to decoherence from their environment. Recently, in Ref.…
No Intrinsic Decoherence of Inflationary Cosmological Perturbations
After a brief summary of the four main veins in the treatment of decoherence and quantum to classical transition in cosmology since the 1980s, we focus on one of these veins in the study of quantum…
Protective measurement of open quantum systems
We study protective quantum measurements in the presence of an environment and decoherence. We consider the model of a protectively measured qubit that also interacts with a spin environment during…
Emergent classicality in general multipartite states and channels
It is shown that for any evolution of the system and environment, for everywhere in the environment excluding an O(1)-sized region the authors call the "quantum Markov blanket," any locally accessible information about the system must be approximately classical, i.e. obtainable from some fixed measurement.
Dynamics of entropy and information of time-dependent quantum systems: exact results
- PhysicsQuantum Inf. Process.
Dynamical aspects of information-theoretic and entropic measures of quantum systems are studied. First, we show that for the time-dependent harmonic oscillator, as well as for the charged particle in…
Low-decoherence quantum information transmittal scheme based on the single-particle various degrees of freedom entangled states
- PhysicsQuantum Inf. Process.
A new low-decoherence quantum information deferent scheme is proposed on the basis of the single-particle diverse degrees of freedom entangled states from dissimilar perspectives that can reduce amounts of noise interference in the information transmittal process from the origin by entanglement.
SHOWING 1-10 OF 443 REFERENCES
Decoherence and the Appearance of a Classical World in Quantum Theory
In the last decade decoherence has become a very popular topic mainly due to the progress in experimental techniques which allow monitoring of the process of decoherence for single microscopic or…
Decoherence and the Foundations of Quantum Mechanics
This is an introduction to decoherence with an emphasis on the foundational and conceptual aspects of the theory. It explores the extent to which decoherence suggests a solution to the measurement…
Decoherence and the quantum-to-classical transition
Introducing Decoherence.- The Basic Formalism and Interpretation of Decoherence.- Decoherence Is Everywhere: Localization Due to Environmental Scattering.- Master-Equation Formulations of…
Course 8: Environment-Induced Decoherence and the Transition from Quantum to Classical
We study dynamics of quantum open systems, paying special attention to these aspects of their evolution which are relevant to the transition from quantum to classical. We begin with a discussion of…
Decoherence of quantum superpositions through coupling to engineered reservoirs
Decoherence is induced by coupling the atom to engineered reservoirs, in which the coupling and state of the environment are controllable, and the decoherence rate scales with the square of a quantity describing the amplitude of the superposition state.
Classical decoherence in a nanomechanical resonator
Decoherence is an essential mechanism that defines the boundary between classical and quantum behaviours, while imposing technological bounds for quantum devices. Little is known about quantum…
Decoherence, einselection, and the quantum origins of the classical
as quantum engineering. In the past two decades it has become increasingly clear that many (perhaps all) of the symptoms of classicality can be induced in quantum systems by their environments. Thus…
Decoherence of matter waves by thermal emission of radiation
Good quantitative agreement is found between the experimental observations and microscopic decoherence theory of matter wave interferometer experiments in which C70 molecules lose their quantum behaviour by thermal emission of radiation.
Quantum decoherence of phonons in Bose–Einstein condensates
We apply modern techniques from quantum optics and quantum information science to Bose–Einstein condensates (BECs) in order to study, for the first time, the quantum decoherence of phonons of…