Results 101 to 110 of about 278,956 (259)

Scars in Dirac fermion systems: the influence of an Aharonov–Bohm flux

New Journal of Physics, 2017
Time-reversal ( ${ \mathcal T }$ -) symmetry is fundamental to many physical processes. Typically, ${ \mathcal T }$ -breaking for microscopic processes requires the presence of magnetic field.
Cheng-Zhen Wang, Liang Huang, Kai Chang
doaj   +1 more source

Spontaneous chiral symmetry breaking in early molecular networks

Biology Direct, 2010
Background An important facet of early biological evolution is the selection of chiral enantiomers for molecules such as amino acids and sugars. The origin of this symmetry breaking is a long-standing question in molecular evolution.
Markovitch Omer, Kafri Ran, Lancet Doron
doaj   +1 more source

Finite-size effects on the chiral phase diagram of four-fermion models in four dimensions

, 2009
We study the size dependence of the dynamical symmetry breaking in the four-dimensional Nambu-Jona-Lasinio model. We show that the presence of boundaries reduces the chiral breaking region, and this effect is strengthened for a larger number of ...
A.E. Santana, A.P.C. Malbouisson, Abreu, Abreu, Beneventano, Braun, Braun, Buballa, Ebert, Elizalde, Gamayun, Hatsuda, He, Inagaki, J.M.C. Malbouisson, Kim, Kiriyama, Kiriyama, Kirsten, Klevansky, Kogut, L.M. Abreu, Nambu, Nambu, Volkov, Zhou   +25 more
core   +1 more source

Low-energy effective field theory below the electroweak scale: one-loop renormalization in the ’t Hooft-Veltman scheme

Journal of High Energy Physics
The low-energy effective field theory below the electroweak scale (LEFT) describes the effects at low energies of both the weak interaction and physics beyond the Standard Model.
Luca Naterop, Peter Stoffer
doaj   +1 more source

The transverse polarized structure function in DIS and chiral symmetry breaking in QCD [PDF]

arXiv, 1996
We study the polarized structure functions in QCD. We show that $g_T$ which probes helicity flip interactions in hadrons on the light-front indeed measures the QCD dynamics of chiral symmetry breaking. The relation between chiral symmetry breaking and the observed $g_2$ data is explored.
arxiv  

Time-Reversal Symmetry Breaking and Spontaneous Anomalous Hall Effect in Fermi Fluids

, 2008
We study the spontaneous non-magnetic time-reversal symmetry breaking in a two-dimensional Fermi liquid without breaking either the translation symmetry or the U(1) charge symmetry.
E. Fradkin, E. I. Blount, Eduardo Fradkin, I. I. Pomeranchuk, Kai Sun   +4 more
core   +1 more source

QCD chiral symmetry restoration with a large number of quarks in a model with a confining propagator and dynamically massive gluons

Physics Letters B, 2015
Considering a QCD chiral symmetry breaking model where the gap equation contains an effective confining propagator and a dressed gluon propagator with a dynamically generated mass, we verify that the chiral symmetry is restored for a large number of ...
R.M. Capdevilla, A. Doff, A.A. Natale
doaj  

Spontaneous chiral symmetry breaking in a random driven chemical system. [PDF]

Nat Commun, 2022
Piñeros WD, Tlusty T.
europepmc   +1 more source

Spontaneous chiral-symmetry breaking of lattice QCD with massless dynamical quarks [PDF]

Sci.China G50 (2007) 6-14, 2005
One of the most challenging issues in QCD is the investigation of spontaneous chiral-symmetry breaking, which is characterized by the non-vanishing chiral condensate when the bare fermion mass is zero. In standard methods, one has to perform expensive lattice simulations at multiple bare quark masses, and employ some modeled function to extrapolate the
arxiv  

Band gap opening by two-dimensional manifestation of Peierls instability in graphene

, 2011
Using first-principles calculations of graphene having high-symmetry distortion or defects, we investigate band gap opening by chiral symmetry breaking, or intervalley mixing, in graphene and show an intuitive picture of understanding the gap opening in ...
Ajiki H., Bai J., Balog R., Barbier M., Barone V., Brey L., Castro Neto A. H., Chamon C., Choi S.-M., Ezawa M., Geim A. K., Guinea F., Heejun Yang, Hoffmann R., Hou C.-Y., Hyun-Jong Chung, Jaikwang Shin, Jinseong Heo, Kim M., Kresse G., Kresse G., Mañes J. L., Mintmire J. W., Nambu Y., Novoselov K. S., Okahara K., Park C.-H., Pauling L., Pedersen T. G., Peierls R. F., Pereira V. M., Pereira V. M., Perkins D. H., Ponomarenko L. A., Ryu S., Schwierz F., Semenoff G. W., Son Y.-W., Su W. P., Sunae Seo, Sung-Hoon Lee, U-In Chung, Zhang Y., Zhou S. Y.   +43 more
core   +1 more source