Aspects of quantum information in finite density field theory
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2021)079
Abstract: Abstract We study different aspects of quantum field theory at finite density using methods from quantum information theory. For simplicity we focus on massive Dirac fermions with nonzero chemical potential, and work in 1 +… read more here.
Keywords: aspects quantum; theory; quantum information; finite density ... See more keywords
Chaos and entanglement spreading in a non-commutative gauge theory
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2018)072
Abstract: A bstractHolographic theories with classical gravity duals are maximally chaotic: they saturate a set of bounds on the spread of quantum information. In this paper we question whether non-locality can affect such bounds. Specifically, we… read more here.
Keywords: spreading non; theory; chaos entanglement; quantum information ... See more keywords
Quantum Coherence and Transfer of Quantum Information with a Kerr Medium Under Decoherence
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-020-04693-w
Abstract: We investigate the dynamics of quantum coherence of a system consisting of two interacting atoms coupling with a common cavity which is filled with a nonlinear Kerr-like medium, in the presence of intrinsic decoherence. It… read more here.
Keywords: quantum information; quantum coherence; quantum; interaction ... See more keywords
Recovery of quantum information from a node failure in a graph
Sign Up to like & getrecommendations! Published in 2020 at "Quantum Information Processing"
DOI: 10.1007/s11128-019-2564-3
Abstract: Quantum entanglement is a well-known quantum way of introducing redundancy in quantum error correcting codes. The unitary interactions when modeled using edges of a graph with qubits as nodes give rise to a quantum graph… read more here.
Keywords: quantum; quantum information; graph; failure ... See more keywords
One-step transfer of quantum information for a photonic cat-state qubit
Sign Up to like & getrecommendations! Published in 2020 at "Quantum Information Processing"
DOI: 10.1007/s11128-020-2578-x
Abstract: We present a way to transfer quantum information of a photonic cat-state qubit (cqubit) between two cavities coupled to an artificial atom. The two logic states of the photonic cqubit here are encoded by two… read more here.
Keywords: information; photonic cat; quantum information; information photonic ... See more keywords
Quantum control of quantum information perfect transfer in arbitrary-length spin chain
Sign Up to like & getrecommendations! Published in 2020 at "Indian Journal of Physics"
DOI: 10.1007/s12648-020-01835-y
Abstract: The single-bit quantum information perfect transfer determined only by the dynamic evolution of the system in a spin chain is investigated. Our results show that the quantum control of the above quantum information perfect transfer… read more here.
Keywords: quantum information; spin chain; spin; perfect transfer ... See more keywords
Quantum information teleportation through biological wires, gravitational micro-bio-holes and holographic micro-bio-systems: A hypothesis
Sign Up to like & getrecommendations! Published in 2021 at "Biochemistry and Biophysics Reports"
DOI: 10.1016/j.bbrep.2021.101011
Abstract: Biological systems like cells, bacteria, chloroplasts and other micro-organisms could exchange quantum particles like electrons, photons and gravitational waves and have large distant information teleportation. This is because that their DNAs and membranes are formed… read more here.
Keywords: information; information teleportation; quantum information; biological lines ... See more keywords
A quantum information theoretic quantity sensitive to the neutrino mass-hierarchy
Sign Up to like & getrecommendations! Published in 2020 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2019.114872
Abstract: In this work, we derive a quantum information theoretic quantity similar to the Leggett-Garg inequality, which can be defined in terms of neutrino transition probabilities. For the case of $\nu_\mu \to \nu_e/\bar{\nu}_\mu\to\bar{\nu}_e$ transitions, this quantity… read more here.
Keywords: mass; mass hierarchy; quantity; neutrino mass ... See more keywords
Quantum reservoir processing
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Information"
DOI: 10.1038/s41534-019-0149-8
Abstract: The concurrent rise of artificial intelligence and quantum information poses an opportunity for creating interdisciplinary technologies like quantum neural networks. Quantum reservoir processing, introduced here, is a platform for quantum information processing developed on the… read more here.
Keywords: quantum; reservoir processing; reservoir; quantum information ... See more keywords
High-dimensional optical quantum logic in large operational spaces
Sign Up to like & getrecommendations! Published in 2019 at "npj Quantum Information"
DOI: 10.1038/s41534-019-0173-8
Abstract: The probabilistic nature of single-photon sources and photon–photon interactions encourages encoding as much quantum information as possible in every photon for the purpose of photonic quantum information processing. Here, by encoding high-dimensional units of information… read more here.
Keywords: optical quantum; high dimensional; quantum; photon ... See more keywords
Does gravity come from quantum information?
Sign Up to like & getrecommendations! Published in 2018 at "Nature Physics"
DOI: 10.1038/s41567-018-0297-3
Abstract: Reconciling quantum mechanics with gravity has long posed a challenge for physicists. Recent developments have seen concepts originally developed in quantum information theory, such as entanglement and quantum error correction, come to play a fundamental… read more here.
Keywords: quantum; quantum information; gravity come; gravity ... See more keywords