Results 21 to 30 of about 1,553 (138)

Entanglement and extreme spin squeezing of unpolarized states

open access: yesNew Journal of Physics, 2017
We present criteria to detect the depth of entanglement in macroscopic ensembles of spin- j particles using the variance and second moments of the collective spin components.
Giuseppe Vitagliano   +5 more
doaj   +1 more source

Exact solution for the inhomogeneous Dicke model in the canonical ensemble: Thermodynamical limit and finite-size corrections

open access: yesNuclear Physics B, 2017
We consider an exactly solvable inhomogeneous Dicke model which describes an interaction between a disordered ensemble of two-level systems with single mode boson field.
W.V. Pogosov   +3 more
doaj   +1 more source

Glutaredoxine reduzieren schnell Glutathionhydroper‐ und Glutathionpolysulfide

open access: yesAngewandte Chemie, EarlyView.
Glutaredoxine (Grx) reduzieren Glutathionpolysulfide (GSSnSG) schnell zu Glutathionhydroper/polysulfiden (GSSnH) oder GSSnH zu Wasserstoff(poly)sulfiden (H2Sn). Die Reduktion glutathionylierter Grx durch reduziertes Glutathion (GSH) liefert Glutathiondisulfid (GSSG).
Philipp Reinert   +6 more
wiley   +1 more source

Heralded linear optical generation of Dicke states

open access: yesNew Journal of Physics
Entanglement is a fundamental feature of quantum mechanics and a key resource for quantum information processing. Among multipartite entangled states, Dicke states $|D_n^k\rangle$ are distinguished by their permutation symmetry, which provides robustness
Minhyeok Kang   +4 more
doaj   +1 more source

The ecology of inclusive education reimagined: A framework for research, policy, and practice

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Evidence suggests the educational gap between those who experience success at school and those who do not is growing. Decades of rhetoric, policy and reform have failed to deliver an inclusive form of schooling that meets the learning needs of all students and much of the blame for this is placed at the feet of schools.
Joanna Anderson
wiley   +1 more source

Creation of arbitrary Dicke and NOON states of trapped-ion qubits by global addressing with composite pulses

open access: yesNew Journal of Physics, 2013
We propose a fast and efficient technique to create classes of highly entangled states of trapped ions, such as arbitrary Dicke states and superpositions of them, e.g. NOON states.
Svetoslav S Ivanov   +2 more
doaj   +1 more source

Critical behavior of quantum Fisher information in finite-size open Dicke model

open access: yesAIP Advances, 2022
We explore the steady-state critical behavior of the finite-size open Dicke model—a model that incorporates spontaneous emission decay of the collective atomic spin states and decay of the cavity field. From the perspective of quantum information theory,
Meng Yu   +3 more
doaj   +1 more source

Beyond a Technocentric Transition: A Diverse Economies Perspective for Social Justice in Circular Economy Business Models

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The circular economy, dominated by capitalocentric, technocentric, and eco‐modernist discourses, risks perpetuating systemic injustice because of its limited consideration of the social and of what is possible. In this article, we examine how social justice can be embedded into circular business models (CBMs)—key drivers of the circular ...
Fernando C. Lit   +3 more
wiley   +1 more source

Exact solvability, non-integrability, and genuine multipartite entanglement dynamics of the Dicke model

open access: yesNew Journal of Physics, 2015
In this paper, the finite-size Dicke model of arbitrary number of qubits is solved analytically in a unified way within extended coherent states. For the $N=2k$ or $2k-1$ Dicke models ( k is an integer), the G -function, which is only an energy dependent
Shu He, Liwei Duan, Qing-Hu Chen
doaj   +1 more source

Chaos and Thermalization in the Spin-Boson Dicke Model

open access: yesEntropy, 2022
We present a detailed analysis of the connection between chaos and the onset of thermalization in the spin-boson Dicke model. This system has a well-defined classical limit with two degrees of freedom, and it presents both regular and chaotic regions ...
David Villaseñor   +5 more
doaj   +1 more source

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