Results 31 to 40 of about 124,083 (285)

Quantum information transport to multiple receivers

open access: yes, 2005
The importance of transporting quantum information and entanglement with high fidelity cannot be overemphasized. We present a scheme based on adiabatic passage that allows for transportation of a qubit, operator measurements and entanglement, using a 1-D
Andrew D. Greentree   +4 more
core   +1 more source

Weak convergence of inner superposition operators [PDF]

open access: yesProceedings of the American Mathematical Society, 1998
The equivalence of the weak (pointwise) and strong convergence of a sequence of inner superposition operators is proved as well as the criteria for such convergence are provided. Besides, the problems of continuous weak convergence of such operators and of representation of a limit operator are studied.
Drakhlin M. E., Stepanov E.
openaire   +1 more source

Transformations of superpositions by means of incoherent operations [PDF]

open access: yesScientific Reports, 2020
AbstractIn this paper we study how the coherence of a superposition of pure states is related with the coherence of its components. We consider two pure initial states and two pure final coherent states, such that the former ones cannot be transformed into the latter ones by means of incoherent transformations.
Losada, Marcelo   +3 more
openaire   +4 more sources

Experimental implementation of arbitrary entangled operations

open access: yesNew Journal of Physics, 2020
Quantum entanglement lies at the heart of quantum mechanics in both fundamental and practical aspects. The entanglement of quantum states has been studied widely both theoretically and experimentally, however, the entanglement of operators has not been ...
Seongjin Hong   +6 more
doaj   +1 more source

Experiments testing macroscopic quantum superpositions must be slow [PDF]

open access: yes, 2015
We consider a thought experiment where the preparation of a macroscopically massive or charged particle in a quantum superposition and the associated dynamics of a distant test particle apparently allow for superluminal communication.
De Palma, Giacomo   +2 more
core   +3 more sources

Superpositions for nonlinear operators. I. Strong superpositions and linearizability

open access: yesJournal of Mathematical Analysis and Applications, 1972
AbstractA notion of superposition for nonlinear operators is defined and strong and weak superpositions are distinguished. The classification and representation of operators having a strong superposition is treated. The algebra induced by the superposition on the domain of operators with strong superpositions, as well as their relation to linearizable ...
openaire   +2 more sources

Superposition operator problems of Hölder-Lipschitz spaces

open access: yesDemonstratio Mathematica
Let ff be a function defined on the real line, and Tf{T}_{f} be the corresponding superposition operator which maps hh to Tf(h){T}_{f}\left(h), i.e., Tf(h)=f∘h{T}_{f}\left(h)=f\circ h. In this article, the sufficient and necessary conditions such that Tf{
Niu Yeli, Wang Heping
doaj   +1 more source

Measurement- and comparison-based sizes of Schrödinger cat states of light [PDF]

open access: yes, 2014
We extend several measurement-based definitions of effective superposition size to coherent state superpositions with branches composed of either single coherent states or tensor products of coherent states. These measures of superposition size depend on
Volkoff, TJ, Whaley, KB
core  

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Effect of Classical and Quantum Superposition of Atomic States on Quantum Correlations

open access: yesAdvances in Mathematical Physics, 2023
In this paper, we report the effect of classical and quantum superposition of atomic states on quantum correlations. Coupled photon pairs generated in a ladder quantum beat laser using coherent-induced classical field and atomic state coherent ...
Chimdessa Gashu   +2 more
doaj   +1 more source

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