Gábor Takács
professor Budapest University of Technology and Economics (BME)
Department of Theoretical Physics
scientific advisor
head of research group
MTA-BME "Momentum" Statistical Field Theory Research Group

Márton Kormos

2002-2003 Diploma (Msc) student (Eötvös Univ, physicist)
Topic: Supersymmetry breaking deformation of the Maldacena-Nunez solution
2003-2007 Doctoral (PhD) student (Eötvös Univ, Physics Doctoral School)
Topic: Boundary renormalization group flows in supersymmetric minimal models
Graduated in 2007 (summa cum laude)

Further carrier

2007-2008 postdoctoral research associate, Department of Mathematics, King's College London
2008-2010 postdoctoral fellow, SISSA, Trieste, Italy
2010-2012 postdoctoral fellow, Rice University, Houston, USA
2012-2013 postdoctoral fellow, Pisa University, Pisa, Italy
2013-2015 Marie Curie fellow, MTA-BME "Momentum" Statistical Field Theory Research Group, Budapest University of Technology and Economics
2015- research fellow, MTA-BME "Momentum" Statistical Field Theory Research Group, Budapest University of Technology and Economics
2016-2019 Premium postdoctoral fellowship

Publications under my supervision

M. Kormos and G. Takács:
Boundary form factors in finite volume
Nucl. Phys. B803 (2008) 277-298, arXiv: 0712.1886 [hep-th].
M. Kormos:
Boundary renormalisation group flows of the supersymmetric Lee-Yang model and its extensions,
Nucl. Phys. B772 (2007) 227-248, arXiv: hep-th/0701061.
M. Kormos:
Boundary renormalisation group flows of unitary superconformal minimal models,
Nucl. Phys. B744 (2006) 358-379, arXiv: hep-th/0512085.


Balázs Pozsgay

2005-2006 Diploma (Msc) student (Eötvös Univ, physicist)
Topic: Characterizing resonances using finite size effects
2006-2009 Doctoral (PhD) student (Eötvös Univ, Physics Doctoral School)
Topic: Form factors in finite volume and finite temperature correlation functions
Graduated in 2009 (summa cum laude)

Further carrier:

2008 Awarded an Exchange Grant from the ESF INSTANS research network for a 3-month visit at Service de Physique Théorique, CEA Saclay (hosted by Prof. H. Saleur)
2009-2012 postdoctoral fellow, Institute for Theoretical Physics, University of Amsterdam, The Netherlands
2012- research fellow, MTA-BME "Momentum" Statistical Field Theory Research Group, Budapest University of Technology and Economics
2014 Junior Prima Prize
2016-2019 Premium postdoctoral fellowship

Publications under my supervision

B. Pozsgay:
Lüscher's µ-term and finite volume bootstrap principle for scattering states and form factors
Nucl. Phys. B802 (2008) 435-457, arXiv: 0803.4445 [hep-th].
B. Pozsgay and G. Takács:
Form factors in finite volume II: disconnected terms and finite temperature correlators
Nucl. Phys. B788 (2008) 209-251, arXiv: 0706.3605 [hep-th].
B. Pozsgay and G. Takács:
Form factors in finite volume I: form factor bootstrap and truncated conformal space
Nucl. Phys. B788 (2008) 167-208, arXiv: 0706.1445 [hep-th].
B. Pozsgay and G. Takács:
Characterization of resonances using finite size effects
Nucl. Phys. B748 (2006) 485-523, hep-th/0604022.


Miklós Szőts

2006 research student (in the framework of the Scientific Students' Associations)
Topic: Casimir effect in the presence of multiple defects
Results: 3rd prize at the National Scientific Students' Associations Conference
2006-2007 Diploma (Msc) student (Eötvös Univ, physicist)
Topic: Determining the operator spectrum from the boundary form factor bootstrap
2007-2011 Doctoral (PhD) student (Eötvös Univ, Physics Doctoral School)
Topic: Developing the boundary form factor bootstrap

Publications under my supervision

M. Szőts and G. Takács:
Spectrum of local boundary operators from boundary form factor bootstrap
Nucl. Phys. B785 (2007) 211-233, hep-th/0703226.


György Fehér

2009-2011 Diploma (Msc) student (Univ. of Technology, engineer-physicist)
Topic: Determination of operator matrix elements using finite size methods
2011-2012 Doctoral (PhD) student (Eötvös Univ, Physics Doctoral School)
Topic: Finite volume form factors for nondiagonal scattering

Further carrier

2012-2016 graduate student, Institute for Theoretical Physics, University of Amsterdam, The Netherland
2016- research fellow, MTA-BME "Momentum" Statistical Field Theory Research Group, Budapest University of Technology and Economics

Publications under my supervision

G. Fehér and G. Takács:
Sine-Gordon form factors in finite volume,
Nucl. Phys. B852 (2011) 441-467, arXiv:1106.1901 [hep-th].
G.Z. Fehér, T. Pálmai and G. Takács:
Sine-Gordon multi-soliton form factors in finite volume,
Phys. Rev. D85 (2012) 085005, arXiv:1112.6322 [hep-th].


Máté Lencsés

2010-2011 Diploma (Msc) student (Univ. of Technology, physicist)
Topic: Boundary form factors
2011-2015 Doctoral (PhD) student (Eötvös Univ, Physics Doctoral School)
Topic: Renormalization in the truncated conformal space approach
Graduated in 2015 (summa cum laude)

Further carrier

2016- postdoctoral fellow, International Institute of Physics, Natal, Brazil

Publications under my supervision

M. Lencsés and G. Takács:
Confinement in the q-state Potts model: an RG-TCSA study,
JHEP 1509 (2015) 146, arXiv:1506.06477 [hep-th].
M. Lencsés and G. Takács:
Excited state TBA and renormalized TCSA in the scaling Potts model,
JHEP 1409 (2014) 052, arXiv:1405.3157 [hep-th].
M. Lencsés and G. Takács:
Breather boundary form factors in sine-Gordon theory,
Nucl. Phys. B852 (2011) 615-633, arXiv:1106.1902 [hep-th].


Anna J. Zsigmond

2009-2010 BSc student (Eötvös Univ)
Topic: PT symmetric quantum mechanics

István Szécsényi


Graduated in 2017
2010-2013 Doctoral (PhD) student (Eötvös Univ, Physics Doctoral School)
Topic: Finite temperature correlation functions

Further carrier

2013-2016 Marie Curie early stage researcher, Centre for Particle Theory, University of Durham, UK
2016- research fellow, MTA-BME "Momentum" Statistical Field Theory Research Group, Budapest University of Technology and Economics

Publications under my supervision

B. Pozsgay, I.M. Szécsényi and G. Takács:
Exact finite volume expectation values of local operators in excited states,
arXiv:1412.8436 [hep-th].
I.M. Szécsényi, G. Takács and G.M.T. Watts:
One-point functions in finite volume/temperature: a case study,
JHEP 1308 (2013) 094, arXiv:1304.3275 [hep-th].
I.M. Szécsényi and G. Takács:
Spectral expansion for finite temperature two-point functions and clustering,
J. Stat. Mech. 1212 (2012) P12002, arXiv:1210.0331 [hep-th].


Tamás Pálmai

2011-2012 Part-time graduate student (Univ. of Technology, supervisor: B. Apagyi)
Topic: Sine-Gordon multi-soliton form factors in finite volume

Further carrier

2012-2014 postdoctoral fellow, SISSA, Trieste, Italy
2014-2016 postdoctoral fellow, MTA-BME "Momentum" Statistical Field Theory Research Group, Budapest University of Technology and Economics
2016- postdoctoral fellow, Brookhaven National Laboratory, USA

Publications under my supervision

T. Pálmai:
Regularization of multi-soliton form factors in sine-Gordon model,
Comput. Phys. Commun. 183 (2012) 1813-1821, arXiv:1111.7086 [math-ph].
G.Z. Fehér, T. Pálmai and G. Takács:
Sine-Gordon multi-soliton form factors in finite volume,
Phys. Rev. D85 (2012) 085005, arXiv:1112.6322 [hep-th].
T. Pálmai and G. Takács:
Diagonal multi-soliton matrix elements in finite volume,
Phys. Rev. D87 (2013) 045010, arXiv:1209.6034 [hep-th].


Márton Mestyán

2013-2015 MSc student (Univ. of Technology, supervision shared with B. Pozsgay)
Topic: Quantum quenches in the XXZ spin chain

Publications under my supervision

M. Mestyán, B. Pozsgay, G. Takács and M.A. Werner:
Quenching the XXZ spin chain: quench action approach versus generalized Gibbs ensemble,
J Stat. Mech. 1504 (2015) P04001, arXiv:1412.4787 [cond-mat.stat-mech].
B. Pozsgay, M. Mestyán, M. A. Werner, M. Kormos, G. Zaránd and G. Takács:
Correlations after quantum quenches in the XXZ spin chain: Failure of the Generalized Gibbs Ensemble,
Phys. Rev. Lett. 113 (2014) 117203, arXiv:1405.2843 [cond-mat.stat-mech].

Further carrier

2015- PhD student, SISSA, Trieste, Italy


Dávid Horváth

2014- PhD student (Univ. of Technology)
Topic: Form factor methods in quantum quenches

Publications under my supervision

D.X. Horváth, S. Sotiriadis and G. Takács:
Initial states in integrable quantum field theory quenches from an integral equation hierarchy,
Nucl. Phys. B902 (2016) 508-547, arXiv:1510.01735 [cond-mat.stat-mech].
D.X. Horváth, P.E. Dorey and G. Takács:
Roaming form factors for the tricritical to critical Ising flow,
JHEP 1607 (2016) 051, arXiv:1604.05635 [hep-th].

Tibor Rakovszky

2015-2016 MSc student (Eötvös Univ., supervision shared with M. Kormos)
Topic: Time evolution after a quantum quench

Publications under my supervision

T. Rakovszky, M. Mestyán, M. Collura, M. Kormos and G. Takács:
Hamiltonian truncation approach to quenches in the Ising field theory,
Nucl. Phys. B911 (2016) 805-845, arXiv:1607.01068 [cond-mat.stat-mech].

Levente Pristyák

2017- BSc student (Univ. of Technology)
Topic: Non-equilibrium dynamics in spin chains