Multi-Granularity Optical Networks

Blaizot, Caroline; Dotaro, Emmanuel; Noirie, Ludovic; Jourdan, A.

doi:10.1007/978-0-387-35410-1_1

Cited by 13 publications

(7 citation statements)

References 7 publications

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“…One would expect to be able to implement non abelian features within the present scheme, this time considering the weak coupling approximation more carefully, being the non-linear QCD couplings less strongly suppressed than the QED ones. This route has been followed in the preliminary work [60], in which the QED case can be obtained as a restriction of the QCD case. expression (4.3) as a result.…”

Section: Discussionmentioning

confidence: 99%

Fate of in-medium heavy quarks via a Lindblad equation

Boni

2017

J. High Energ. Phys.

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What is the dynamics of heavy quarks and antiquarks in a quark gluon plasma? Can heavy-quark bound states dissociate? Can they (re)combine? These questions are addressed by investigating a Lindblad equation that describes the quantum dynamics of the heavy quarks in a medium. The Lindblad equations for a heavy quark and a heavy quark-antiquark pair are derived from the gauge theory, following a chain of well-defined approximations. In this work the case of an abelian plasma has been considered, but the extension to the non-abelian case is feasible. A one-dimensional simulation of the Lindblad equation is performed to extract information about bound-state dissociation, recombination and quantum decoherence for a heavy quark-antiquark pair. All these phenomena are found to depend strongly on the imaginary part of the inter-quark potential.

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Section: Discussionmentioning

confidence: 99%

Fate of in-medium heavy quarks via a Lindblad equation

Boni

2017

J. High Energ. Phys.

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“…The nucleus is instead a non-fluctuating object. Indeed, we observe that generally speaking, it is quite unnatural to have configurations of nucleons inside the nucleus which are very different from uniformly distributed since the wavefunction of a large nucleus is approximately the same as the ground-state wavefunction of nuclear matter, for which it is known that density fluctuations are very small [7].…”

Section: Introductionmentioning

confidence: 93%

Fluctuations of the multiplicity of produced particles in onium-nucleus collisions

2017

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We address the general features of event-by-event fluctuations of the multiplicity of gluons produced in the scattering of a dilute hadron off a large nucleus at high energy in the fragmentation region of the dilute hadron. We relate these fluctuations to the stochasticity of the number of quanta contained in the hadron at the time of the interaction. For simplicity, we address the ideal case in which the hadron is an onium, and investigate different kinematical regimes in rapidity and onium size. We show that at large rapidity, the multiplicity distribution exhibits an exponential tail in the large-multiplicity region, which is qualitatively consistent with the proton-nucleus data. But interestingly enough, the exponential shape is determined by confinement.

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“…The fermions have to be dressed in all possible ways by gluon insertions. Power counting arguments [15] can be easily extended to estimate the power of the gauge coupling g associated with the connected parts which appear in eqs. (13) when they are evaluated at high temperatures.…”

Section: B Chiral Condensatementioning

confidence: 99%

Chiral dynamics in QCD at finite chemical potential

Gupta

Ray

2004

Phys. Rev. D

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We present the renormalized Taylor expansion of the chiral condensate with chemical potential. The relation with the Taylor coefficients of meson susceptibilities and the quark mass dependence of the quark number susceptibilities are obtained through chiral Ward identities and Maxwell relations. The continuum limit is obtained in quenched and two flavour QCD. In Nf=2 QCD, the quadratic response coefficients (QRCs) of the chiral condensate to chemical potential indicate that pion fluctuations decrease at finite chemical potential toward the critical end point. We discuss how these observables can be used to test other features of the QCD phase diagram

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Multi-Granularity Optical Networks

Cited by 13 publications

References 7 publications

Fate of in-medium heavy quarks via a Lindblad equation

Fate of in-medium heavy quarks via a Lindblad equation

Fluctuations of the multiplicity of produced particles in onium-nucleus collisions

Chiral dynamics in QCD at finite chemical potential

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