Results 101 to 110 of about 34,205 (212)

Optical memory bandwidth and multiplexing capacity in the erbium telecommunication window

open access: yesNew Journal of Physics, 2015
We study the bandwidth and multiplexing capacity of an erbium-doped optical memory for quantum storage purposes. We concentrate on the protocol revival of a silenced echo because it has the largest potential multiplexing capacity.
J Dajczgewand   +5 more
doaj   +1 more source

Roles of energy eigenstates and eigenvalues in equilibration of isolated quantum systems

open access: yes, 2017
We show that eigen-energies and energy eigenstates play different roles in the equilibration process of an isolated quantum system. Their roles are revealed numerically by exchanging the eigen-energies between an integrable model and a non-integrable ...
Wu, Biao, Zhu, Shaoqi
core   +2 more sources

Tech Diplomacy and the Digital International Order: The Case of the EU–U.S. Trade and Technology Council

open access: yesGlobal Policy, EarlyView.
ABSTRACT This article examines the evolving role of the U.S.–EU Trade and Technology Council (TTC) in advancing the EU's digital diplomacy, with a particular focus on its contribution to global digital ordering. Positioned at the intersection of normative engagement and regulatory coordination, the TTC operates as a hybrid mechanism that integrates ...
Corneliu Bjola, Raluca Csernatoni
wiley   +1 more source

Periodic quantum Rabi model with cold atoms at deep strong coupling

open access: yesPhysical Review Research
The quantum Rabi model describes the coupling of a two-state system to a bosonic field mode. Recent theoretical work has pointed out that a generalized periodic version of this model, which maps onto Hamiltonians applicable in superconducting qubit ...
Geram Hunanyan   +5 more
doaj   +1 more source

Wave-Packet Revivals for Quantum Systems with Nondegenerate Energies

open access: yes, 1996
The revival structure of wave packets is examined for quantum systems having energies that depend on two nondegenerate quantum numbers. For such systems, the evolution of the wave packet is controlled by two classical periods and three revival times ...
Alber   +27 more
core   +1 more source

Rebuilding the Ladder? Contemporary Contests Over Industrial Policy

open access: yesGlobal Policy, EarlyView.
ABSTRACT Does the greater embrace of industrial policy globally signal the emergence of a New Washington Consensus? We show that the multiplication of industrial policies, while consequential, signals neither normalisation nor consensus. Rather, industrial policy is increasingly the object of contestation over norms and practices of state ...
Ilias Alami, Jack Taggart, Tom Chodor
wiley   +1 more source

Revival of rabi oscillations in optically excited semiconductor quantum dots

open access: yesMoldavian Journal of the Physical Sciences, 2008
We present the theoretical investigation of the dynamics of strongly confined laser driven semiconductor quantum dots coupled to phonons. We provide a formally exact solution of this non-Markovian quantum decoherence problem. The method is based on the
Croitor, Mihail
doaj  

Non-Markovian features in semiconductor quantum optics: quantifying the role of phonons in experiment and theory

open access: yesNanophotonics, 2019
We discuss phonon-induced non-Markovian and Markovian features in QD-based quantum nanooptics. We cover lineshapes in linear absorption experiments, phonon-induced incoherence in the Heitler regime, and memory correlations in two-photon coherences.
Carmele Alexander, Reitzenstein Stephan
doaj   +1 more source

Rendezvous in Space: Tech Diplomacy and the Commercial Space Era—A Study of Rendezvous and Docking Technologies and Space Exploration Co‐Operation Since the Cold War

open access: yesGlobal Policy, EarlyView.
ABSTRACT On‐orbit rendezvous and docking constitute one of the most technically challenging activities in the history of space activities. As space endeavours mature to crewed missions, space rendezous and docking technologies (RDT) emerge as an area of technological innovation critical to advances in future crewed space exploration.
Nikita Chiu, Markus Kornprobst
wiley   +1 more source

The effect of spin-orbit interaction on entanglement of two-qubit Heisenberg XYZ systems in an inhomogeneous magnetic field

open access: yes, 2008
The role of spin-orbit interaction on the ground state and thermal entanglement of a Heisenberg XYZ two-qubit system in the presence of an inhomogeneous magnetic field is investigated.
Fardin Kheirandish   +5 more
core   +1 more source

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