Nf=1 QCD in external magnetic fields: staggered fermions

被引:3
作者
Cea, Paolo [1 ,2 ]
Cosmai, Leonardo [1 ]
机构
[1] INFN, Sez Bari, Via Amendola 173, I-70126 Bari, Italy
[2] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
关键词
Nonperturbative Effects; Lattice Quantum Field Theory; CONSTANT BACKGROUND FIELDS; UNSTABLE MODES; LATTICE; TEMPERATURE; DEPENDENCE;
D O I
10.1007/JHEP12(2015)058
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We investigate N-f = 1 QCD in external magnetic fields on the lattice. The background field is introduced by means of the so-called Schrodinger functional. We adopt standard staggered fermions with constant bare mass am = 0: 025 and magnetic fields with constant magnetic flux up to a(2)eH similar or equal to 2.3562. We find that the the deconfinement and chiral symmetry restoration temperatures do not depend on the strength of the applied magnetic field. Our method allow us to easily study the effects of the external magnetic fields on the QCD thermodynamics. We determine the influences of applied magnetic fields to the free energy, pressure, and equation of state of strongly interacting matter.
引用
收藏
页码:1 / 21
页数:21
相关论文
共 43 条
[1]   The QCD equation of state in background magnetic fields [J].
Bali, G. S. ;
Bruckmann, F. ;
Endrodi, G. ;
Katz, S. D. ;
Schaefer, A. .
JOURNAL OF HIGH ENERGY PHYSICS, 2014, (08)
[2]   Paramagnetic Squeezing of QCD Matter [J].
Bali, G. S. ;
Bruckmann, F. ;
Endrodi, G. ;
Schaefer, A. .
PHYSICAL REVIEW LETTERS, 2014, 112 (04)
[3]   Magnetic field-induced gluonic (inverse) catalysis and pressure (an)isotropy in QCD [J].
Bali, G. S. ;
Bruckmann, F. ;
Endrodi, G. ;
Gruber, F. ;
Schaefer, A. .
JOURNAL OF HIGH ENERGY PHYSICS, 2013, (04)
[4]   Magnetic susceptibility of QCD at zero and at finite temperature from the lattice [J].
Bali, G. S. ;
Bruckmann, F. ;
Constantinou, M. ;
Costa, M. ;
Endrodi, G. ;
Katz, S. D. ;
Panagopoulos, H. ;
Schaefer, A. .
PHYSICAL REVIEW D, 2012, 86 (09)
[5]   The QCD phase diagram for external magnetic fields [J].
Bali, G. S. ;
Bruckmann, F. ;
Endrodi, G. ;
Fodor, Z. ;
Katz, S. D. ;
Krieg, S. ;
Schaefer, A. ;
Szabo, K. K. .
JOURNAL OF HIGH ENERGY PHYSICS, 2012, (02)
[6]   Magnetic susceptibility and equation of state of Nf=2+1 QCD with physical quark masses [J].
Bonati, Claudio ;
D'Elia, Massimo ;
Mariti, Marco ;
Negro, Francesco ;
Sanfilippo, Francesco .
PHYSICAL REVIEW D, 2014, 89 (05)
[7]   Magnetic Susceptibility of Strongly Interacting Matter across the Deconfinement Transition [J].
Bonati, Claudio ;
D'Elia, Massimo ;
Mariti, Marco ;
Negro, Francesco ;
Sanfilippo, Francesco .
PHYSICAL REVIEW LETTERS, 2013, 111 (18)
[8]   Deconfinement transition in two-flavor lattice QCD with dynamical overlap fermions in an external magnetic field [J].
Bornyakov, V. G. ;
Buividovich, P. V. ;
Cundy, N. ;
Kochetkov, O. A. ;
Schaefer, A. .
PHYSICAL REVIEW D, 2014, 90 (03)
[9]   Full result for the QCD equation of state with 2 ± 1 flavors [J].
Borsanyi, Szabolcs ;
Fodor, Zoltan ;
Hoelbling, Christian ;
Katz, Sandor D. ;
Krieg, Stefan ;
Szabo, Kalman K. .
PHYSICS LETTERS B, 2014, 730 :99-104
[10]   Electromagnetic superconductivity of vacuum induced by strong magnetic field: Numerical evidence in lattice gauge theory [J].
Braguta, V. V. ;
Buividovich, P. V. ;
Chernodub, M. N. ;
Kotov, A. Yu. ;
Polikarpov, M. I. .
PHYSICS LETTERS B, 2012, 718 (02) :667-671