Results 291 to 300 of about 123,672 (318)

Observation of returning Thouless pumping. [PDF]

open access: yesNat Commun
Cheng Z   +8 more
europepmc   +1 more source

Symmetries II: Discrete Symmetries

2011
This is probably the most technical chapter of this book. Discrete symmetries play a fundamental role in modern particle physics and cosmology. We have delayed their study until now to be able to develop all the tools required to explore some or their fascinating consequences.
Luis Álvarez-Gaumé   +1 more
openaire   +1 more source

Discrete Symmetry Transformations

1996
In Sect. 4.3 we have studied the transformation properties of quantum fields. The discussion was devoted to continuous transformations that can be constructed by starting from infinitesimal transformations “close to unity”. If a theory is invariant under such a transformation it will possess a Noether current and thus there will be a conservation law ...
Walter Greiner, Joachim Reinhardt
openaire   +1 more source

Gauging discrete symmetries

Journal of Mathematical Physics, 1995
Recent developments in quantum gravity theory have led to the suggestion that various discrete symmetries, in particular charge–parity (CP), should be ‘‘gauged,’’ that is, interpreted as elements of some connected Lie group. As the parity operator is related to a space–time isometry, however, it is far from clear that this suggestion has any real ...
openaire   +2 more sources

Continuous symmetries of discrete equations

Physics Letters A, 1991
Abstract Lie group techniques for solving differential equations are extended to differential-difference equations. As an application, it is shown that the two-dimensional Toda lattice has an infinite dimensional symmetry group with a Kac-Moody-Virasoro Lie algebra.
LEVI, Decio, WINTERNITZ P.
openaire   +2 more sources

Discrete Symmetry Groups

1988
Those discrete groups which play the central role in solid-state physics are the point groups and their extensions (double, colour groups), the translation groups, and the combination of both (the space groups). These groups and the meaning of their elements are discussed in the following sections.
Wolfgang Ludwig, Claus Falter
openaire   +1 more source

Home - About - Disclaimer - Privacy