Results 51 to 60 of about 1,570,961 (359)

Nonclassical symmetry and Riemann invariants [PDF]

, 2005
In this paper it is shown that Riemann invariants are invariant under nonclassical symmetries of a hyperbolic system. As a specific example, we study the one-dimensional shallow water equations on the flat and present another type invariance under nonclassical symmetries.
arxiv   +1 more source

Symmetry as a source of hidden coherent structures in quantum physics: general outlook and examples

, 1998
A general algebraic approach, incorporating both invariance groups and dynamic symmetry algebras, is developed to reveal hidden coherent structures (closed complexes and configurations) in quantum many-body physics models due to symmetries of their ...
A. B. Govorkov, A. M. Perelomov, A. O. Barut, D. F. Smirnov, E. G. Nadjakov, E. P. Wigner, G. Racah, H. Ewyl, H. J. Lipkin, H. Prakash, J. Lehner, J. P. Elliott, L. B. Okun, L. Broglie De, L. C. Biedenharn, M. Moshinsky, N. N. Bogolyubov, P. Z. Jordan, R. A. Brandt, R. Rajaraman, S. A. Balashova, S. I. Ališauskas, S. L. Woronowicz, V. I. Ogievetsky, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov, V. P. Karassiov   +33 more
core   +1 more source

Simultaneity as an Invariant Equivalence Relation [PDF]

, 2012
This paper deals with the concept of simultaneity in classical and relativistic physics as construed in terms of group-invariant equivalence relations.
A. Einstein, A. Grünbaum, A. Janis, A.D. Alexandrov, D. Giulini, D. Malament, H. Reichenbach, H. Reichenbach, M. Hogarth, M. Mamone-Capria, M. Mamone-Capria, Marco Mamone-Capria, R.K. Sachs, S. Sarkar   +13 more
core   +1 more source

The Physical Interpretation of PT-invariant Potentials [PDF]

Czechoslovak Journal of Physics, 2004
A purely imaginary potential can provide a phenomenological description of creation and absorption of quantum mechanical particles. PT-invariance of such a potential ensures that the non-unitary phenomena occur in a balanced manner. In spite of wells and sinks which locally violate the conservation of quantum probability, there is no net get loss or ...
openaire   +4 more sources

Topological invariants of time-reversal-invariant band structures [PDF]

Phys. Rev. B 75, 121306(R) (2007), 2006
The topological invariants of a time-reversal-invariant band structure in two dimensions are multiple copies of the $\mathbb{Z}_2$ invariant found by Kane and Mele. Such invariants protect the topological insulator and give rise to a spin Hall effect carried by edge states. Each pair of bands related by time reversal is described by a single $\mathbb{Z}
arxiv   +1 more source

An Arena for Model Building in the Cohen-Glashow Very Special Relativity

, 2008
The Cohen-Glashow Very Special Relativity (VSR) algebra [arXiv:hep-ph/0601236] is defined as the part of the Lorentz algebra which upon addition of CP or T invariance enhances to the full Lorentz group, plus the space-time translations.
A. G. Cohen, A. Tureanu, A. Tureanu, A. Tureanu, J. Fan, J. Gomis, J. Lukierski, L. Alvarez-Gaume, M. Chaichian, M. Chaichian, M. Chaichian, M. Chaichian, M. Chaichian, M. Chaichian, M. Chaichian, M. Chaichian, M. M. Sheikh-Jabbari, M. M. Sheikh-Jabbari, M. M. Sheikh-Jabbari, O. Aharony, R. J. Szabo, S. Doplicher, S. R. Coleman, V. A. Kostelecky, V. Chari, V. G. Drinfel’d, X. Calmet   +26 more
core   +1 more source

Unitarity Triangles and the Search for New Physics [PDF]

, 2002
Assuming that the Kobayashi-Maskawa mechanism gives the dominant contribution to CP violation at low energies, we propose a novel way of testing the flavour sector of the Standard Model which has the potencial for discovering New Physics.
Abbiendi, Abe, Aleksan, Ali, Anikeev, Aubert, Aubert, Ball, Barate, Barenboim, Barenboim, Barenboim, Bigi, Botella, Branco, Branco, Branco, Branco, Branco, Branco, Branco, Buras, Chang, Charles, Ciuchini, del Aguila, Del Aguila, Dighe, F.J. Botella, Falk, Fleischer, Fleischer, G.C. Branco, Gronau, Gronau, Gronau, Gronau, Gronau, Groom, Hawkins, Hocker, Hurth, Jaffe, Laplace, London, Lü, M. Nebot, M.N. Rebelo, Masiero, Mele, Nir, Nir, Silva, Silva, Tanaka, Yanir   +55 more
core   +2 more sources

High-dimensional and permutation invariant anomaly detection

SciPost Physics
Methods for anomaly detection of new physics processes are often limited to low-dimensional spaces due to the difficulty of learning high-dimensional probability densities. Particularly at the constituent level, incorporating desirable properties such as
Vinicius Mikuni, Benjamin Nachman
doaj   +1 more source

Hadronic uncertainties in B → K ∗ μ + μ −: a state-of-the-art analysis

Journal of High Energy Physics, 2017
In the absence of direct evidence for New Physics at present LHC energies, the focus is set on the anomalies and discrepancies recently observed in rare b → sℓℓ transitions which can be interpreted as indirect hints.
Bernat Capdevila, Sébastien Descotes-Genon, Lars Hofer, Joaquim Matias   +3 more
doaj   +1 more source

Comparison of kinship‐identification methods for robust stock assessment using close‐kin mark–recapture data for Pacific bluefin tuna

Population Ecology, EarlyView.
In this study, we compared three methods for kinship identification using different algorithms in samples of wild Pacific bluefin tuna and generated genotyping data. The three methods resulted in different numbers of inferred kinship pairs for both generated and actual data. Particularly for the half‐sibling pairs, considerable number of false‐positive
Yohei Tsukahara, Reiichiro Nakamichi, Aiko Matsuura, Tetsuya Akita, Atushi Fujiwara, Nobuaki Suzuki   +5 more
wiley   +1 more source