Entropy production far from equilibrium in a chiral charged plasma in the presence of external electromagnetic fields

Cartwright, Casey

doi:10.1007/jhep01(2021)041

Cited by 19 publications

(19 citation statements)

References 99 publications

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“…Including the proper Chern-Simons term may have interesting effects on the topological properties of the solutions, see e.g [84,85],. and is subject to future study[78].…”

mentioning

confidence: 99%

Topological or rotational non-Abelian gauge fields from Einstein-Skyrme holography

Cartwright

Harms

Kaminski

2021

J. High Energ. Phys.

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We report analytically known states at non-zero temperature which may serve as a powerful tool to reveal common topological and thermodynamic properties of systems ranging from the QCD phase diagram to topological phase transitions in condensed matter materials. In the holographically dual gravity theory, these are analytic solutions to a five-dimensional non-linear-sigma (Skyrme) model dynamically coupled to Einstein gravity. This theory is shown to be holographically dual to $$ \mathcal{N} $$ N = 4 Super-Yang-Mills theory coupled to an SU(2)-current. All solutions are fully backreacted asymptotically Anti-de Sitter (AdS) black branes or holes. One family of global AdS black hole solutions contains non-Abelian gauge field configurations with positive integer Chern numbers and finite energy density. Larger Chern numbers increase the Hawking-Page transition temperature. In the holographically dual field theory this indicates a significant effect on the deconfinement phase transition. Black holes with one Hawking temperature can have distinct Chern numbers, potentially enabling topological transitions. A second family of analytic solutions, rotating black branes, is also provided. These rotating solutions induce states with propagating charge density waves in the dual field theory. We compute the Hawking temperature, entropy density, angular velocity and free energy for these black holes/branes. These correspond to thermodynamic data in the dual field theory. For these states the energy-momentum tensor, (non-)conserved current, and topological charge are interpreted.

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“…Including the proper Chern-Simons term may have interesting effects on the topological properties of the solutions, see e.g [84,85],. and is subject to future study[78].…”

mentioning

confidence: 99%

Topological or rotational non-Abelian gauge fields from Einstein-Skyrme holography

Cartwright

Harms

Kaminski

2021

J. High Energ. Phys.

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“…where m t may be thought of as the black hole mass. As stated in [10], using the solutions in eq. (2.7) along with K µ = U ∂ µ U for the U given in eq.…”

Section: Topological Solutionmentioning

confidence: 99%

Topological confinement in Skyrme holography

Cartwright,

Harms,

Kaminski

et al. 2022

Preprint

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We study phase transitions in five-dimensional Einstein Gravity with a negative cosmological constant, coupled to a Skyrme matter field. These transitions are topological generalizations of the Hawking-Page transition between thermal Anti de Sitter (AdS) spacetime and an AdS black hole. Phases are characterized by a topological number associated with the Skyrme field configuration. Depending on that topological number and on the Skyrme coupling strength, there occur transitions between those phases at two, one, or no value(s) of the temperature. Through the holographic (AdS/CFT) correspondence, these solutions are dual to topologically non-trivial states in a conformal field theory (CFT) with an SU(2)-symmetry, which support either confined or deconfined (quasi-)particles at strong coupling. We compare to similar known phase transitions, and discuss potential applications to confinement in topological phases of condensed matter and the quark-gluon plasma.

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“…This choice implies that we can consistently set the metric function F 1 = 0. If we were to keep this term and provide a source for this component of the vector gauge field, the metric component F 1 would describe the backreaction of the CME current on the energy-momentum tensor [48,51].…”

Section: B Metric and Gauge Field Ansatzmentioning

confidence: 99%

“…The pseudo-nested list generated by treating the directional derivatives of the metric components along outgoing geodesics as auxiliary fields is collected for this system in appendix A. The method of solution is directly analogous to earlier work [51] although we do repeat it in appendix C for completeness.…”

Section: B Metric and Gauge Field Ansatzmentioning

confidence: 99%

Energy dependence of the chiral magnetic effect in expanding holographic plasma

Cartwright,

Kaminski,

Schenke

2021

Preprint

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Based on a holographic far-from-equilibrium calculation of the chiral magnetic effect (CME) in an expanding quark gluon plasma, we study collisions at various energies. We compute the time evolution of the CME current in the presence of a time-dependent axial charge density and subject to a time-dependent magnetic field. The plasma expansion leads to a dilution of the CME current. We study distinct combinations of how the initial magnetic field and initial axial charge behave with changing initial energy as proposed in previous literature. Most scenarios we consider lead to an increasing time-integrated CME current, when increasing the initial energy. This would make it more likely to observe the CME at higher collision energies. CONTENTS I. Introduction 1 II. Holographic Model 3 A. Gravitational theory 3 B. Metric and gauge field ansatz 3 C. Energy-momentum tensor and currents of the dual boundary field theory 5 D. Preparation of initial conditions 6 E. Remarks on the holographic model construction 7 III. Results: CME current & pressure anisotropies 8 A.

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Entropy production far from equilibrium in a chiral charged plasma in the presence of external electromagnetic fields

Cited by 19 publications

References 99 publications

Topological or rotational non-Abelian gauge fields from Einstein-Skyrme holography

Topological or rotational non-Abelian gauge fields from Einstein-Skyrme holography

Topological confinement in Skyrme holography

Energy dependence of the chiral magnetic effect in expanding holographic plasma

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