Results 41 to 50 of about 2,043,284 (342)

High-Symmetry Polarization Domains in Low-Symmetry Ferroelectrics

, 2013
We present experimental evidence for hexagonal domain faceting in the ferroelectric polymer PVDF-TrFE films having the lower orthorhombic crystallographic symmetry. This effect can arise from purely electrostatic depolarizing forces.
Gruverman, A., Lukyanchuk, I., Nakajima, T., Okamura, S., Scott, J. F., Sharma, P.   +5 more
core   +2 more sources

Symmetries of symmetries and geometrical CP violation [PDF]

Nuclear Physics B, 2015
We investigate transformations which are not symmetries of a theory but nevertheless leave invariant the set of all symmetry elements and representations. Generalizing from the example of a three Higgs doublet model with $Δ(27)$ symmetry, we show that the possibility of such transformations signals physical degeneracies in the parameter space of a ...
Fallbacher, Maximilian, Trautner, Andreas   +1 more
openaire   +4 more sources

Symmetry TFT for subsystem symmetry

Journal of High Energy Physics
Abstract We generalize the idea of symmetry topological field theory (SymTFT) for subsystem symmetry. We propose the 2-foliated BF theory with level N in (3 + 1)d as subsystem SymTFT for subsystem ℤ N symmetry in (2 + 1)d. Focusing on N = 2, we investigate various topological boundaries.
Weiguang Cao, Qiang Jia
openaire   +3 more sources

ON THE SYMMETRIES OF INTEGRABILITY [PDF]

International Journal of Modern Physics B, 1992
We show that the Yang-Baxter equations for two-dimensional models admit as a group of symmetry the infinite discrete group [Formula: see text]. The existence of this symmetry explains the presence of a spectral parameter in the solutions of the equations.
J-M. Maillard, Marc P. Bellon, C.-M. Viallet   +2 more
openaire   +4 more sources

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Vetoing all the Higgs imposters in $$H\rightarrow \ell ^-\ell ^+ Z$$ H → ℓ - ℓ + Z

European Physical Journal C: Particles and Fields
We develop an effective and methodical algorithm for the construction of general covariant four-point $$H\ell \ell Z$$ H ℓ ℓ Z vertices, accommodating leptons $$\ell =e, \mu $$ ℓ = e , μ , and designed to handle a boson H of any integer spin, not merely ...
Seong Youl Choi, Jaehoon Jeong, Dong Woo Kang   +2 more
doaj   +1 more source

Exact Solutions and Conservation Laws of a Two-Dimensional Integrable Generalization of the Kaup-Kupershmidt Equation

Journal of Applied Mathematics, 2013
We study a two-dimensional integrable generalization of the Kaup-Kupershmidt equation, which arises in various problems in mathematical physics. Exact solutions are obtained using the Lie symmetry method in conjunction with the extended tanh method and ...
Abdullahi Rashid Adem, Chaudry Masood Khalique   +1 more
doaj   +1 more source

Continuous symmetry of C60 fullerene and its derivatives

, 2010
Conventionally, the Ih symmetry of fullerene C60 is accepted which is supported by numerous calculations. However, this conclusion results from the consideration of the molecule electron system, of its odd electrons in particular, in a close-shell ...
Adams W. H., Alikhanidi S., Alikhanidi S., Alvarez S., Avnir D., Avnir D., B. S. Razbirin, Benard M., Bochvar D. A., Broude V. L., Chang A. H. H., Čižek J., D. K. Nelson, Davidson E. R., Davidson R. A., E. F. Sheka, Ellis D. E., Elser V., Ermer O., Estrada E., Fowler P., Grimm S., Haddon R. C., Haddon R. C., Hay P. J., Hedberg K., Hedberg L., Hirsh A., Hirsh A., Hirsh A., Horoyski P. J., Jones D. E. H., Katzenelson O., Keinan S., Koutecky J. J., Kroto H., Krygowski T. M., Leclercq F., Lee B. X., Lee B. X., Löwdin P. O., Löwdin P.-O., Nagase S., Noodleman L., Noodleman L., Orlandi G., Osadko I. S., Osawa E., Overhauser A. W., Paldus J., Petitjean M., Pinsky M., Pinsky M., Razbirin B. S., Razbirin B. S., Rohlfing E. A., Sadoc I., Schleyer P. v. R., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Sheka E. F., Shpol’skii E. V., Slanina Z., Slater J. C., Slovokhotov Yu. L., Stankevich I. V., Staroverov V. N., Taylor R., Touless D. J., Tratch S. S., Wang X.-B., Weaver J. H., Weaver J. H., Wiberg K. B., Yanonni C. S., Yoshida Z., Zabrodsky H., Zabrodsky H., Zabrodsky H., Zayets V. A.   +87 more
core   +1 more source

Dual conformal invariance in the Regge limit [PDF]

, 2010
A dual conformal symmetry, analogous to the dual conformal symmetry observed for the scattering amplitudes of N=4 Super Yang-Mills theory, is identified in the Regge limit of QCD.
Gomez, Cesar, Gunnesson, Johan, Vera, Agustin Sabio   +2 more
core   +2 more sources

Causal symmetries [PDF]

Classical and Quantum Gravity, 2003
We define a new type of transformation for Lorentzian manifolds characterized by mapping every causal future-directed vector onto a causal future-directed vector. The set of all such transformations, which we call causal symmetries, has the structure of a submonoid. Some of their properties are investigated and we give necessary conditions for a vector
José M. M. Senovilla, Alfonso García-Parrado   +1 more
openaire   +4 more sources