Results 41 to 50 of about 3,405 (240)

Discriminating quantum correlations with networking quantum teleportation

open access: yesPhysical Review Research, 2020
The Bell inequality, and its substantial experimental violation, offers a seminal paradigm for showing that the world is not in fact locally realistic.
Shih-Hsuan Chen   +5 more
doaj   +1 more source

Spreading nonlocality in a quantum network [PDF]

open access: yesPhysical Review Research, 2020
Starting from several copies of bipartite noisy entangled states, we design a global and optimal local measurement-based protocol in one- and two-dimensional lattices by which any two or more prefix sites can be connected via entanglement. Production of bipartite as well as multipartite entangled states in a network is verified in a device independent ...
Ratul Banerjee   +3 more
openaire   +3 more sources

Quantum nonlocality without entanglement: explicit dependence on prior probabilities of nonorthogonal mirror-symmetric states

open access: yesnpj Quantum Information, 2021
In the case of a multi-party system, through local operations and classical communication (LOCC), each party may not perform perfect discrimination of quantum states that are separable and orthogonal.
Donghoon Ha, Younghun Kwon
doaj   +1 more source

Quantum Nonlocality and Inseparability [PDF]

open access: yes, 1997
A quantum system consisting of two subsystems is separable if its density matrix can be written as $ρ=\sum w_K ρ_K'\otimes ρ_K''$, where $ρ_K'$ and $ρ_K''$ are density matrices for the two subsytems, and the positive weights $w_K$ satisfy $\sum w_K=1$.
openaire   +2 more sources

NONLOCAL EFFECTS IN QUANTUM GRAVITY [PDF]

open access: yesModern Physics Letters A, 1998
Recently,2 a new quantum gravity theory was presented in which the quantum effects were represented by the conformal degree of freedom of the space–time metric. In this letter we show that in the framework of this theory, quantum gravity is nonlocal.
Shojai, Ali   +2 more
openaire   +2 more sources

Causation, decision theory, and Bell's theorem: a quantum analogue of the Newcomb problem [PDF]

open access: yes, 2009
I apply some of the lessons from quantum theory, in particular from Bell's theorem, to a debate on the foundations of decision theory and causation. By tracing a formal analogy between the basic assumptions of Causal Decision Theory (CDT)---which was ...
Cavalcanti, Eric G   +4 more
core   +1 more source

The simplest demonstrations of quantum nonlocality [PDF]

open access: yesNew Journal of Physics, 2012
12 Pages, 3 ...
Saunders, D.J.   +5 more
openaire   +7 more sources

The Oxford Questions on the foundations of quantum physics [PDF]

open access: yes, 2013
The twentieth century saw two fundamental revolutions in physics—relativity and quantum. Daily use of these theories can numb the sense of wonder at their immense empirical success.
Zeilinger, A   +5 more
core   +1 more source

Investigating and controlling the quantum resources of bipartite-qubit detectors of scalar fields in the process of spacetime expansion

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
Quantum resources construct new avenues to explore the cosmos. Considering bipartite-qubit detectors subjected to scalar fields in an expanding spacetime, quantum resources (including quantum coherence, quantum discord, Bell-nonlocality, and nonlocal ...
Huan Yang   +4 more
doaj   +1 more source

Spatial Orientation‐Dependent Double Hydrogen Bond/Photoredox Cooperative Catalysis in Metal–Organic Frameworks

open access: yesAngewandte Chemie, EarlyView.
We report a heterogeneous double hydrogen bond/photoredox synergistic catalysis, wherein the flexibility and spatial orientation of catalytic centers, rather than catalyst activity, play a dominant role in catalytic performance. ABSTRACT Catalyst activity is typically the primary priority in designing a catalytic system. The higher catalyst activity is
Jing Ouyang   +8 more
wiley   +2 more sources

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