1824 June 2017
Palacio de Congresos
Europe/Madrid timezone
Applications Beyond QCD
Place
Location: Palacio de Congresos
Address: PALACIO DE CONGRESOS
Paseo del Violón s/n, 18006
Granada, SPAIN
Date:
from 22 Jun 15:00 to 23 Jun 19:10
Conveners

22 Jun 15:00  16:40
 Rakow, Paul (University of Liverpool)

23 Jun 15:00  16:40
 Dr. Schaich, David (University of Bern)

23 Jun 17:10  19:10
 Prof. Wipf, Andreas (FriedrichSchillerUniversity Jena)
Timetable  Contribution List
Displaying 14
contributions
out of
14
Many groups are now interested in combining QCD and QED on the lattice. Simulations with massless photons bring new infrared and finite size issues.
When we simulate an electrically charged hadron on the lattice we do several odd things. We create charged particles from the vacuum, violating conservation of charge. We use periodic boundary conditions, which don't allow a net outward elec
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Presented by Paul RAKOW
on
23/6/2017
at
17:50
Entanglement entropy provides a quantitative measure of quantum purity in a quantum system. In this work, lattice methods are used to exactly solve nonrelativistic, interacting fewbody systems in one dimension. Focus is placed on the timedependent dynamics of the entanglement entropy, particularly around externally driven resonances. The entanglement entropy is found to provide a robust indicat
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Presented by Mr. Joshua MCKENNEY
on
23/6/2017
at
16:20
The detection of the (semi)metalinsulator phase transition can be extremely difficult if the local order parameter which characterizes the ordered phase is unknown. In some cases, it is even impossible to define a local order parameter: the most prominent example of such system is the spin liquid state. This state was proposed to exist in the Hubbard model on the hexagonal lattice in a region bet
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Presented by Dr. Maksim ULYBYSHEV
on
23/6/2017
at
15:20
Equation of state of nonrelativistic matter from automated perturbation theory and complex Langevin
We calculate the pressure and density equations of state of both unpolarized and polarized nonrelativistic fermions at finite temperature in 1D. For attractive contact interactions, where there is no sign problem, we perform a thirdorder lattice perturbation theory calculation, assess its convergence properties by comparing with hybrid Monte Carlo, and demonstrate agreement with real Langevin. F
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Presented by Mr. Andrew LOHEAC
on
22/6/2017
at
16:20
We show how lattice Quantum Monte Carlo simulations can be used to calculate electronic properties of carbon nanotubes in the presence of strong electronelectron correlations. We employ the pathintegral formalism and use methods developed within the lattice QCD community for our numerical work. We compare our results to empirical data of the Mott gap in large diameter tubes.
Presented by Prof. Thomas LUU
on
23/6/2017
at
16:00
We investigate fourFermi theories on 3dimensional lattices. These are GrossNeveu and Thirring models with a varying numbers of flavours $N_f$. These theories are renormalizable in the $1/N_f$expansion and possess an interacting continuum limit. The Thirring models are closely related to 3dimensional QED and serve as fieldtheoretic models for graphene. For sufficiently small $N_f$ they show a
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Presented by Prof. Andreas WIPF
on
22/6/2017
at
15:20
The Thirring model is a FourFermiTheory with a currentcurrent interaction and $U(2N_\text{f})$ chiral symmetry. It is closely related to threedimensional QED
and other models used to describe properties of graphene. In addition it serves as a toy model to study chiral symmetry breaking.
In the limit of flavournumber $N_\text{f} \to 1/2$ it is connected to the GrossNeveau model, which shows
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Presented by Dr. Björn WELLEGEHAUSEN
on
22/6/2017
at
15:40
We present firstprinciple lattice study of continuity conjecture in $2d$ $SU(N) \times SU(N)$ Principal Chiral Model (PCM) on $R \times S^1$ with respect to circumference $L$ of $S^1$ in the presence of $Z(N)$preserving twist. The twist can be considered as analogous to Twisted EguchiKawai reduction in lattice gauge theory. We study static correlation length and find that it exhibits a peak at
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Presented by Mr. Semen VALGUSHEV
on
23/6/2017
at
16:10
Using the complex Langevin method for stochastic quantization, we implement a particlenumber projection technique on the partition function of spin1/2 fermions at finite temperature on the lattice. In this presentation, we discuss the method and show results for the free energy of polarized systems of Nup+Ndown particles in a finite volume, as well as virial coefficients of various orders.
Presented by Christopher SHILL
on
22/6/2017
at
16:00
Dirac Semimetals Na3Bi and Cd3As2 are recently discovered materials,
which low energy
electronic spectrum is described by two flavours of massless 3+1D fermions.
In order to study low energy properties of these materials we
formulated lattice field theory
with rooted staggered fermions on anisotropic lattice. It is shown
that in the limit of zero temporal lattice spacing this theory
reprod
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Presented by Mr. Andrey KOTOV
on
23/6/2017
at
15:00
I will present recent and ongoing investigations of a fourdimensional lattice field theory with four massless reduced staggered fermions coupled through an SU(4)invariant fourfermion interaction. As in previous studies of fourfermion and HiggsYukawa models with different lattice fermion discretizations, we observe a strongcoupling phase in which the system develops a mass gap without break
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Presented by Dr. David SCHAICH
on
22/6/2017
at
15:00
Dirac semimetal has a massless Dirac fermion protected by discrete symmetries. Under the external magnetic field, the chiral magnetic effect shows a peculiar behavior induced by the quantum anomaly. In strong magnetic field and exact massless limit, the intracorn transition does not occur because of the helicity conservation. In exact massless limit, the transport property is dictated by the inte
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Presented by Ms. Aya KAGIMURA
on
23/6/2017
at
15:40
The influence of lattice structure defects on phase transition phenomena was studied in framework of 2D spin model. Effective mass of defect was proposed for investigation of conformal properties of the model at critical point. The volume dependence of defect's mass at critical point and the Critical Casimir interaction of two defects were studied. It was shown that this Casimir interaction is at
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Presented by Dr. Oleg PAVLOVSKY
on
23/6/2017
at
17:10
Universality of various fermion formulations is well established in QCDlike theories that are defined around the perturbative $g^2=0$ fixed point. These arguments do not
apply for conformal systems that exhibit an infrared fixed point at nonvanishing $g^2$ coupling.
We investigate the step scaling function for systems with 10 and 12 fundamental flavors using domain wall fermions and compa
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Presented by Prof. Anna HASENFRATZ
on
23/6/2017
at
17:30