Results 41 to 50 of about 2,207,478 (329)

Relativistic field theories in a magnetic background as noncommutative field theories

, 2004
We study the connection of the dynamics in relativistic field theories in a strong magnetic field with the dynamics of noncommutative field theories (NCFT). As an example, the Nambu-Jona-Lasinio models in spatial dimensions $d \geq 2$ are considered.
A. Cappelli, A. Connes, A. A. Slavnov, A. A. Slavnov, E. V. Gorbar, G. V. Dunne, H. van Dam, H. O. Girotti, K. G. Klimenko, M. R. Douglas, N. Seiberg, S. Iso, S. Minwalla, S. Schramm, V. A. Miransky, V. P. Gusynin, V. V. Khoze, Y.-K. E. Cheung   +17 more
core   +1 more source

Constrained topological field theory [PDF]

Physics Letters B, 1994
We derive a model of constrained topological gravity, a theory recently introduced by us through the twist of N=2 Liouville theory, starting from the general BRST algebra and imposing the moduli space constraint as a gauge fixing. To do this, it is necessary to introduce a formalism that allows a careful treatment of the global and the local degrees of
ANSELMI, DAMIANO, FRE P, GIRARDELLO L, SORIANI P.   +3 more
openaire   +3 more sources

Rotating kinky braneworlds

Journal of High Energy Physics, 2018
Cylindrical braneworlds have been used in the literature as a convenient way to resolve co-dimension-two branes. They are prevented from collapsing by a massless worldvolume field with non-trivial winding, but here we discuss another way of preventing ...
Florian Niedermann, Paul M. Saffin
doaj   +1 more source

Perturbing Topological Field Theories

, 1999
The abelian Chern-Simons theory is perturbed by introducing local gauge-invariant interaction terms depending on the curvature. The computation of the correlation function of two Wilson lines for two smooth closed nonintersecting curves is reported up to
A. M. Polyakov, C. H. Tze, C. P. Burgess, Cesar A. Linhares, D. Birmingham, D. G. Barci, D. G. G. Sasaki, E. C. Marino, E. Fradkin, E. Guadagnini, E. Witten, E. Witten, E. Witten, E. Witten, F. A. Schaposnik, G. Giavarini, J. Maldacena, Luiz Claudio, P.-N. Tan, Q. Vilar, R. Banerjee, S. Deser, Silvio P. Sorella, T. H. Hansson, V. E. R. Lemes, Vitor E. R. Lemes   +25 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Integrable Field Theories with Defects [PDF]

, 2006
The structure of integrable field theories in the presence of defects is discussed in terms of boundary functions under the Lagrangian formalism. Explicit examples of bosonic and fermionic theories are considered.
A. Fring, A. H. Zimerman, G. Delfino, J. F. Gomes, J.F. Gomes, L. H. Ymai, M. Chaichian, P. Bowcock, P. Bowcock, S. Ghoshal   +9 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Holographic Schwinger-Keldysh effective field theories

Journal of High Energy Physics, 2019
We construct a holographic dual of the Schwinger-Keldysh effective action for the dissipative low-energy dynamics of relativistic charged matter at strong coupling in a fixed thermal background.
Jan de Boer, Michal P. Heller, Natalia Pinzani-Fokeeva   +2 more
doaj   +1 more source

Nonrelativistic conformal field theories

, 2007
We study representations of the Schr\"odinger algebra in terms of operators in nonrelativistic conformal field theories. We prove a correspondence between primary operators and eigenstates of few-body systems in a harmonic potential.
Dam T. Son, U. Niederer, Yusuke Nishida
core   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

FEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf, Nicholas F. Downing, Kaitlyn M. Mills, Samuel C. Metcalfe, Alexander E. Kritzer, Lindsey D. Mayo, Peter C. Hollenhorst   +6 more
wiley   +1 more source