Results 61 to 70 of about 890,334 (313)

Anomaly cancellation in effective supergravity theories from the heterotic string: Two simple examples

Nuclear Physics B, 2018
We use Pauli–Villars regularization to evaluate the conformal and chiral anomalies in the effective field theories from Z3 and Z7 compactifications of the heterotic string without Wilson lines.
Mary K. Gaillard, Jacob Leedom
doaj   +1 more source

Negative Magnetoresistance without Chiral Anomaly in Topological Insulators. [PDF]

Physical Review Letters, 2017
An intriguing phenomenon in topological semimetals and topological insulators is the negative magnetoresistance (MR) observed when a magnetic field is applied along the current direction.
X. Dai, Z. Du, Z. Du, Hai-Zhou Lu
semanticscholar   +1 more source

Chiral Lattice Fermions, Minimal Doubling, and the Axial Anomaly

, 2010
Exact chiral symmetry at finite lattice spacing would preclude the axial anomaly. In order to describe a continuum quantum field theory of Dirac fermions, lattice actions with purported exact chiral symmetry must break the flavor-singlet axial symmetry ...
Tiburzi, Brian C.
core   +1 more source

Chiral gauged fermions on a lattice [PDF]

, 2000
The chiral fermion model with local multifermion interactions proposed in Nucl. Phys. B486 (1997) 282 and Phys. Rev. D61 (2000) 054502 processes an exact SU_L(2) chiral gauge symmetry and SU_L(2) by U_R(1) chiral flavour symmetry on a lattice and a ...
't Hooft, Alonso, Aoki, Aoki, Bock, Bodwin, Borrelli, Coleman, Creutz, Creutz, Creutz, Creutz, Detcher, Eichten, Frolov, Ginsparg, Gockeler, Golterman, Golterman, Golterman, Golterman, Golterman, Hernández, Kaplan, Karsten, Kieu, Lüscher, Maiani, Maiani, Montvay, Nambu, Narayanan, Neuberger, Nielsen, Preparata, Preparata, Preparata, Preskill, Shamir, Shamir, She-Sheng Xue, Smit, Swift, Testa, Testa, Wilson, Witten, Xue, Xue, Xue, Xue, Xue   +51 more
core   +2 more sources

Anomaly-Free Sets of Fermions

, 2005
We present new techniques for finding anomaly-free sets of fermions. Although the anomaly cancellation conditions typically include cubic equations with integer variables that cannot be solved in general, we prove by construction that any chiral set of ...
/Argonne, /Fermilab, /UC, Berkeley, Math. Dept., Batra, Puneet, Dobrescu, Bogdan A., Spivak, David   +5 more
core   +2 more sources

Optical manifestations of domains with constant topological charge density

Physical Review Research, 2019
Domains of finite topological charge density can exist in chiral materials and chiral matter. Spatial and temporal variation of the average topological charge density, represented by the θ field, induces anomalous currents that are responsible for the ...
Evan Stewart, Kirill Tuchin
doaj   +1 more source

Semiclassics with ’t Hooft flux background for QCD with 2-index quarks

Journal of High Energy Physics, 2022
We study quantum chromodynamics including the two-index symmetric or anti-symmetric quark (QCD(Sym/ASym)) on small ℝ2 × T 2 with a suitable magnetic flux.
Yuya Tanizaki, Mithat Ünsal
doaj   +1 more source

Anomalies and the chiral magnetic effect in the Sakai-Sugimoto model

, 2009
In the chiral magnetic effect an imbalance in the number of left- and right-handed quarks gives rise to an electromagnetic current parallel to the magnetic field produced in noncentral heavy-ion collisions.
A Rebhan, Andreas Schmitt, Anton Rebhan, CT Hill, CV Johnson, DE Kharzeev, DE Kharzeev, DT Son, DT Son, E Witten, EG Thompson, EV Gorbar, G Lifschytz, G Lifschytz, GM Newman, H Hata, H Hata, H-U Yee, HB Nielsen, J Ambjørn, J Erdmenger, JM Maldacena, JS Bell, K Fukushima, K Hashimoto, K-Y Kim, K-Y Kim, K-Y Kim, L McLerran, M Torabian, MA Metlitski, MG Alford, N Horigome, O Bergman, O Bergman, O Kaymakcalan, PV Buividovich, S Elitzur, SL Adler, SS Gubser, Stefan A. Stricker, T Sakai, T Sakai, WA Bardeen   +43 more
core   +2 more sources

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

Can axial U(1) anomaly disappear at high temperature?

EPJ Web of Conferences, 2018
In our recent study of two-flavor lattice QCD using chiral fermions, we find strong suppression of axial U(1) anomaly above the critical temperature of chiral phase transition.
Fukaya Hidenori
doaj   +1 more source