Results 21 to 30 of about 293,692 (307)

Infrared Quantum Information [PDF]

open access: yesPhysical Review Letters, 2017
We discuss information-theoretic properties of low-energy photons and gravitons in the S-matrix. Given an incoming n-particle momentum eigenstate, we demonstrate that unobserved soft photons decohere nearly all outgoing momentum superpositions of charged particles, while the universality of gravity implies that soft gravitons decohere nearly all ...
Carney, Daniel   +3 more
openaire   +3 more sources

Quantum simulation for topological Euler insulators

open access: yesCommunications Physics, 2022
A new class of topological systems has been recently discovered, it has been dubbed the Euler insulator and can manifest in two-dimensional systems. The authors present an experimental implementation for realizing the Euler insulator with 171Yb+ ion ...
Wending Zhao   +11 more
doaj   +1 more source

Quantum information transmission [PDF]

open access: yesQuantum Information Processing, 2012
We present a scheme of quantum information transmission, which transmits the quantum information contained in a single qubit via the quantum correlation shared by two parties (a two-qubit channel), whose quantum discord is non-zero. We demonstrate that the quantum correlation, which may have no entanglement, is sufficient to transmit the information of
Lei Wang   +3 more
openaire   +3 more sources

Coherent memory for microwave photons based on long-lived mechanical excitations

open access: yesnpj Quantum Information, 2023
Mechanical resonators, due to their capability to host ultralong-lived phonon modes, are particularly attractive for quantum state storage and as memory elements in conjunction with quantum computing and communication networks.
Yulong Liu   +5 more
doaj   +1 more source

Fisher information as general metrics of quantum synchronization

open access: yes, 2023
Quantum synchronization has emerged as a crucial phenomenon in quantum nonlinear dynamics with potential applications in quantum information processing. Multiple measures for quantifying quantum synchronization exist.
Weijun Fan   +7 more
core   +1 more source

What is quantum information? [PDF]

open access: yesStudies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lombardi, Olimpia   +2 more
openaire   +7 more sources

An ultra-high gain single-photon transistor in the microwave regime

open access: yesNature Communications, 2022
Successfully controlling an optical signal by a single gate photon would have great applicability for quantum networks and all-optical computing. Here, the authors realise a single-photon transistor in the microwave regime based on superconducting ...
Zhiling Wang   +11 more
doaj   +1 more source

The quantum probability ranking principle for information retrieval [PDF]

open access: yes, 2009
While the Probability Ranking Principle for Information Retrieval provides the basis for formal models, it makes a very strong assumption regarding the dependence between documents.
Van Rijsbergen, C.   +8 more
core   +1 more source

Observation of a quantum phase transition in the quantum Rabi model with a single trapped ion

open access: yesNature Communications, 2021
Quantum phase transition occurs in many-body systems with abrupt changes in the ground state around zero temperature. Here the authors report signatures of quantum phase transition in single trapped ion that can be described using quantum Rabi model.
M.-L. Cai   +9 more
doaj   +1 more source

Quantum information outside quantum information

open access: yes, 2023
Quantum theory, as counter-intuitive as a theory can get, has turned out to make predictions of the physical world that match observations so precisely that it has been described as the most accurate physical theory ever devised. Viewing quantum entanglement, superposition and interference not as undesirable necessities but as interesting resources ...
openaire   +4 more sources

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