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We study the second order finite temperature Mott transition point in the fully frustrated Hubbard model at half filling, within Dynamical Mean Field Theory. Using quantum Monte Carlo simulations we show the existence of a finite…

Strongly Correlated Electrons · Physics 2009-10-31 Marcelo J. Rozenberg , R. Chitra , G. Kotliar

We study the behavior of two diferent models at finite temperature in a $D$-dimensional spacetime. The first one is the $\lambda\varphi^{4}$ model and the second one is the Gross-Neveu model. Using the one-loop approximation we show that in…

High Energy Physics - Theory · Physics 2015-06-26 A. P. C. Malbouisson , N. F. Svaiter

We give the nonperturbative phase diagram of the four-dimensional hot electroweak phase transition. The Monte-Carlo analysis is done on lattices with different lattice spacings ($a$). A systematic extrapolation $a \to 0$ is done. Our…

High Energy Physics - Phenomenology · Physics 2009-10-31 F. Csikor , Z. Fodor , J. Heitger

In this paper we revisit and update the computation of thermal corrections to the stability of the electroweak vacuum in the Standard Model. At zero temperature, we make use of the full two-loop effective potential, improved by three-loop…

High Energy Physics - Phenomenology · Physics 2017-03-15 Luigi Delle Rose , Carlo Marzo , Alfredo Urbano

Numerical simulations are performed to study the finite temperature phase transition in the SU(2) Higgs model on the lattice. The strength of the first order phase transition is investigated by determining the latent heat and the interface…

High Energy Physics - Lattice · Physics 2009-10-22 F. Csikor , Z. Fodor , J. Hein , K. Jansen , A. Jaster , I. Montvay

A possible solution to the observed baryon asymmetry in the universe is described, based on the physics of the standard model of electroweak interactions. At temperatures high enough electroweak physics provides violation of baryon number,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Nicholas Petropoulos

We present the first complete non-redundant operator basis for the Standard Model Effective Field Theory (SMEFT) at finite temperature, using the imaginary-time formalism. By employing the Hilbert series method on the space-time manifold…

High Energy Physics - Theory · Physics 2026-05-05 Joydeep Chakrabortty , Bruno Siqueira Eduardo , Siddhartha Karmakar , Philipp Schicho

We calculate contributions to the finite temperature effective action for the electroweak phase transition (EWPT) at $\O(g^4)$, {\it i.e.} at second order in $(g^2 T/\M)$ and all orders in $(g^2 T^2/\M^2)$. This requires plasma-mass…

High Energy Physics - Phenomenology · Physics 2009-10-22 C. G. Boyd , D. E. Brahm , S. D. H. Hsu

A calculation of the heavy quark potential at finite temperature at strong coupling based on the AdS/CFT correspondence is presented. The calculation relies on the method of complex string trajectories and on the introduction of a modified…

High Energy Physics - Phenomenology · Physics 2009-11-18 Javier L. Albacete

Five-dimensional $SU(3)$ gauge-Higgs unification models are studied at finite temperature in the warped extra dimension $S^1/\mathbb{Z}_2$. In order to investigate the phase structure, we developed a technique to compute the one-loop…

High Energy Physics - Phenomenology · Physics 2014-07-02 Kouji Kashiwa , Yuya Tanizaki

The finite temperature phase diagram of a U(1) Higgs-Yukawa model at a finite value of the scalar self coupling $\lambda$ is investigated by means of a large-$N_f$ calculation and numerical simulations. The phase diagram is similar to the…

High Energy Physics - Lattice · Physics 2009-10-22 Karl Jansen

In the context of scalar field theories, both real and complex, we derive the cutting description at finite temperature (with zero/finite chemical potential) from the cutting rules at zero temperature through the action of a simple thermal…

High Energy Physics - Theory · Physics 2008-11-26 F. T. Brandt , Ashok Das , Olivier Espinosa , J. Frenkel , Silvana Perez

We use the quantum spectral curve to compute the Hagedorn temperature for ABJM theory in terms of the interpolating function $h(\lambda)$. At weak coupling we compute this temperature up to eight-loop order, showing that it matches the…

High Energy Physics - Theory · Physics 2023-07-14 Simon Ekhammar , Joseph A. Minahan , Charles Thull

The effective potential of the order parameter for confinement is calculated within the variational approach to the Hamilton formulation of Yang-Mills theory. Compactifying one spatial dimension and using a background gauge fixing this…

High Energy Physics - Theory · Physics 2013-12-19 Hugo Reinhardt , Jan Heffner

We study the finite-temperature effective potential of the Minimal Supersymmetric Standard Model, in the limit of only one light Higgs boson. Because of the large top Yukawa coupling, there can be significant differences with respect to the…

High Energy Physics - Phenomenology · Physics 2009-10-22 J. R. Espinosa , M. Quiros , F. Zwirner

We study non--equilibrium ensemble corrections to particle masses and the effective potential in the early universe, using a uniform momentum distribution as an example. The resulting thermalization temperature is computed assuming \sm…

High Energy Physics - Phenomenology · Physics 2009-10-22 P. Elmfors , K. Enqvist , I. Vilja

We study the finite-temperature electroweak phase transition of the minimal standard model within the four-dimensional SU(2) gauge-Higgs model. Monte Carlo simulations are performed for intermediate values of the Higgs boson mass in the…

High Energy Physics - Lattice · Physics 2015-07-17 Yasumichi Aoki

The QED effective Lagrangian in the presence of an arbitrary constant electromagnetic background field at finite temperature is derived in the imaginary-time formalism to one-loop order. The boundary conditions in imaginary time reduce the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Holger Gies

The dynamics of five dimensional Wilson line phases at finite temperature is studied in the one-loop approximation. We show that at temperatures of order $T\sim 1/L$, where L is the length of the compact space, the gauge symmetry is always…

High Energy Physics - Phenomenology · Physics 2007-05-23 Giuliano Panico , Marco Serone

Finite-temperature properties of the frustrated Hubbard model are theoretically examined by using the recently proposed thermal pure quantum state, which is an unbiased numerical method for finite-temperature calculations. By performing…

Strongly Correlated Electrons · Physics 2018-01-30 Takahiro Misawa , Youhei Yamaji