Results 21 to 30 of about 13,559 (286)

Spontaneous-Symmetry-Breaking Charge Separation Induced by Pseudo-Jahn–Teller Distortion in Organic Photovoltaic Material

, 2023
The driving force of charge separation in the initial photovoltaic conversion process is theoretically investigated using ITIC, a nonfullerene acceptor material for organic photovoltaic devices.
Motoyuki Uejima (1475320), Takeaki Zaima (17282033), Wataru Ota (7372817), Tohru Sato (1420276), Naoki Haruta (1695655), Hideo Ohkita (1305648)   +5 more
core   +2 more sources

Asymmetric balance in symmetry breaking

Physical Review Research, 2020
Spontaneous symmetry breaking is central to our understanding of physics and explains many natural phenomena, from cosmic scales to subatomic particles.
Bruno Garbin, Julien Fatome, Gian-Luca Oppo, Miro Erkintalo, Stuart G. Murdoch, Stéphane Coen   +5 more
doaj   +1 more source

Spontaneous symmetry breaking and chiral symmetry [PDF]

AIP Conference Proceedings, 2000
In this introductory lecture, some basic features of the spontaneous symmetry breaking are discussed. More specifically, $σ$-model, non-linear realization, and some examples of spontaneous symmetry breaking in the non-relativistic system are discussed in details.
openaire   +2 more sources

On the relationship between gauge dependence and IR divergences in the ℏ-expansion of the effective potential

Journal of High Energy Physics, 2019
Perturbative calculations of the effective potential evaluated at a broken minimum, V min, are plagued by difficulties. It is hard to get a finite and gauge invariant result for V min.
Andreas Ekstedt, Johan Löfgren
doaj   +1 more source

Anomaly inflow, accidental symmetry, and spontaneous symmetry breaking

Journal of High Energy Physics, 2020
We consider the 6d (1,0) SCFT on a stack of N M5-branes probing a ℂ2/ℤ2 singularity. In particular, we study its compactifications to four dimensions on a smooth genus-g Riemann surface with non-trivial flavor flux, yielding a family of 4d CFTs.
Ibrahima Bah, Federico Bonetti
doaj   +1 more source

Breaking flavour symmetry spontaneously [PDF]

Physics Letters B, 1997
Major revisions in text, 12 pages, RevTeX, 5 ...
openaire   +2 more sources

Spontaneous symmetry breaking in plasmon lattice lasers. [PDF]

Sci Adv
Spontaneous symmetry breaking (SSB) is key for our understanding of phase transitions and the spontaneous emergence of order. In this work, we report that, for a two-dimensional (2D) periodic metasurface with gain, SSB occurs in the lasing transition. We
de Gaay Fortman N, Kolkowski R, Pal D, Rodriguez SRK, Schall P, Koenderink AF.   +5 more
europepmc   +2 more sources

Spontaneous Breaking of Rotational Symmetry in Superconductors [PDF]

Physical Review Letters, 2002
We show that homogeneous superconductors with broken spin/isospin symmetry lower their energy via a transition to a novel superconducting state where the Fermi-surfaces are deformed to a quasi-ellipsoidal form at zero total momentum of Cooper pairs. In this state, the gain in the condensation energy of the pairs dominates over the loss in the kinetic ...
Müther, H., Sedrakian, A.
openaire   +3 more sources

Spontaneous Symmetry Breaking in Quantum Systems: Emergence or Reduction? [PDF]

, 2013
Beginning with Anderson (1972), spontaneous symmetry breaking (SSB) in infinite quantum systems is often put forward as an example of (asymptotic) emergence in physics, since in theory no finite system should display it. Even the correspondence between
Landsman, Nicolaas P., Landsman, N.P., N. P. (klaas Landsman   +2 more
core   +1 more source

Gauge Symmetry Breaking in Gauge Theories---In Search of Clarification [PDF]

, 2011
The paper investigates the spontaneous breaking of gauge symmetries in gauge theories from a philosophical angle. Local gauge symmetry itself cannot break spontaneously in quantized gauge theories according to Elitzur's theorem---even though the notion ...
Friederich, Simon
core   +1 more source