Nonconformality, subregion complexity, and meson binding

Lezgi, Mahsa; Ali-Akbari, M.; Asadi, Mohsen

doi:10.1103/physrevd.104.026001

Cited by 8 publications

(2 citation statements)

References 37 publications

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“…order parameter) of the confinement-deconfinement transition. Further explorations of this quantity for different holographic models mimicking QCD properties can be found in [131][132][133][134][135][136][137][138][139][140][141][142]. However, no such studies so far analyzed this phenomenon explicitly related to the meson melting process.…”

Section: Insights From Holographic Modelsmentioning

confidence: 99%

A quantum information perspective on meson melting

Bañuls¹,

Heller²,

Jansen³

et al. 2022

Preprint

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We propose to use quantum information notions to characterize thermally induced melting of nonperturbative bound states at high temperatures. We apply tensor networks to investigate this idea in static and dynamical settings within the Ising quantum field theory, where bound states are confined fermion pairs -mesons. In equilibrium, we identify the transition from an exponential decay to a power law scaling with temperature in an efficiently computable second Rényi entropy of a thermal density matrix as a signature of meson melting. Out of equilibrium, we identify as the relevant signature the transition from an oscillatory to a linear growing behavior of reflected entropy after a thermal quench. These analyses apply more broadly, which brings new ways of describing in-medium meson phenomena in quantum many-body and high-energy physics.

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Section: Insights From Holographic Modelsmentioning

confidence: 99%

A quantum information perspective on meson melting

Bañuls¹,

Heller²,

Jansen³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In other words, in the c → 0 (Λ c → 0) limit we have a conformal field theory. The thermodynamics properties of these backgrounds are studied in [83] and some thermodynamics parameters such as entropy, density and pressure are expressed in terms of non-conformal parameters.…”

Section: Jhep04(2022)014mentioning

confidence: 99%

Non-conformal behavior of holographic entanglement measures

Ali-Akbari

Asadi

Amrahi

2022

J. High Energ. Phys.

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We evaluate the holographic entanglement entropy, HEE, holographic mutual information, HMI, and holographic entanglement of purification, EoP, in a non-conformal model at zero and finite temperature. In order to find the analytical results we consider some specific regimes of the parameter space. We find that the non-conformal effects decrease the redefined HEE and increase the redefined HMI and EoP in the all studied regimes. On the other side, the temperature effects increase (decrease) the redefined HEE (HMI) in the all studied regimes while it has no definite effect on the redefined EoP. Finally, from the information point of view, we find that in the vicinity of the phase transition the zero temperature state is more favorable than the finite temperature one.

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Meson potential energy in a non-conformal holographic model

Asadi

Hajilou

2022

Nuclear Physics B

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Nonconformality, subregion complexity, and meson binding

Cited by 8 publications

References 37 publications

A quantum information perspective on meson melting

A quantum information perspective on meson melting

Non-conformal behavior of holographic entanglement measures

Meson potential energy in a non-conformal holographic model

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