Full QCD and QED at finite temperature and chemical potential

Bender, I.; Hashimoto, T.; Karsch, Frithjof; Linke, V.; Nakamura, Atsushi; Plewnia, Martin; Stamatescu, Ion-Olimpiu; Wetzel, Werner

doi:10.1016/0920-5632(92)90265-t

Cited by 70 publications

(64 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This theory retains many of the features of QCD and represents an approximation to the latter in the large mass, large chemical potential region (heavy dense QCD) [37,38]. For Wilson fermions, with hopping parameter κ, it is based on a resummed hopping parameter expansion, retaining only time-like Polyakov loops, which can formally be obtained from the limit κ → 0, µ → ∞, with κe µ fixed.…”

Section: Gauge Cooling For Qcd With Heavy Quarksmentioning

confidence: 99%

Controlling complex Langevin dynamics at finite density

et al. 2013

View full text Add to dashboard Cite

Abstract. At nonzero chemical potential the numerical sign problem in lattice field theory limits the use of standard algorithms based on importance sampling. Complex Langevin dynamics provides a possible solution, but it has to be applied with care. In this review, we first summarise our current understanding of the approach, combining analytical and numerical insight. In the second part we study SL(N, C) gauge cooling, which was introduced recently as a tool to control complex Langevin dynamics in nonabelian gauge theories. We present new results in Polyakov chain models and in QCD with heavy quarks and compare various adaptive cooling implementations.

show abstract

Section: Gauge Cooling For Qcd With Heavy Quarksmentioning

confidence: 99%

Controlling complex Langevin dynamics at finite density

et al. 2013

View full text Add to dashboard Cite

show abstract

“…As a first application we consider QCD with static quarks at nonzero chemical potential, known as heavy dense QCD (HDQCD) [24,25]. Starting from Wilson quarks with hopping parameter κ, it can be obtained by discarding all spatial hopping terms, keeping only temporal hopping.…”

Section: Heavy Dense Qcdmentioning

confidence: 99%

QCD at nonzero chemical potential: Recent progress on the lattice

Aarts

Attanasio

Jäger

et al. 2016

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. We summarise recent progress in simulating QCD at nonzero baryon density using complex Langevin dynamics. After a brief outline of the main idea, we discuss gauge cooling as a means to control the evolution. Subsequently we present a status report for heavy dense QCD and its phase structure, full QCD with staggered quarks, and full QCD with Wilson quarks, both directly and using the hopping parameter expansion to all orders.

show abstract

“…Heavy-dense QCD (HDQCD) emerges in the limit in which the quark mass and chemical potential are simultaneously large [23,24]. This theory has a non-trivial phase diagram in the plane of temperature and chemical poten-tial, which qualitatively agrees with the one expected for real QCD: e.g., at vanishing chemical potential, there is a thermal deconfinement transition as the temperature is increased with the transition being first order for very heavy quarks and a crossover for slightly lighter but still heavy quarks [25].…”

Section: Introductionmentioning

confidence: 99%

Anatomy of the sign-problem in heavy-dense QCD

Garrón

Langfeld

2016

Eur. Phys. J. C

View full text Add to dashboard Cite

QCD at finite densities of heavy quarks is investigated using the density-of-states method. The phase factor expectation value of the quark determinant is calculated to unprecedented precision as a function of the chemical potential. Results are validated using those from a reweighting approach where the latter can produce a significant signalto-noise ratio. We confirm the particle-hole symmetry at low temperatures, find a strong sign problem at intermediate values of the chemical potential, and an inverse Silver Blaze feature for chemical potentials close to the onset value: here, the phase-quenched theory underestimates the density of the full theory.

show abstract

Full QCD and QED at finite temperature and chemical potential

Cited by 70 publications

References 20 publications

Controlling complex Langevin dynamics at finite density

Controlling complex Langevin dynamics at finite density

QCD at nonzero chemical potential: Recent progress on the lattice

Anatomy of the sign-problem in heavy-dense QCD

Contact Info

Product

Resources

About