Results 41 to 50 of about 3,134 (251)

Wronskian indices and rational conformal field theories

open access: yesJournal of High Energy Physics, 2021
The classification scheme for rational conformal field theories, given by the Mathur-Mukhi-Sen (MMS) program, identifies a rational conformal field theory by two numbers: (n, l). n is the number of characters of the rational conformal field theory.
Arpit Das   +2 more
doaj   +1 more source

Conformal Invariance and Conserved Quantity of Hamilton System under Second-Class Mei Symmetry [PDF]

open access: yes, 2010
Conformal invariance and conserved quantities of Hamilton system under second-class Mei symmetry are studied. The single-parameter infinitesimal transformation group and infinitesimal transformation vector of generator are introduced.
Cai, Jian-Le
core   +1 more source

Asymmetric Galilean conformal algebras [PDF]

open access: yes, 2022
International audienceThe usual Galilean contraction procedure for generating new conformal symmetry algebras takes as input a number of symmetry algebras which are equivalent up to central charge.
Rasmussen, Jorgen   +2 more
core   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

open access: yesFEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty   +13 more
wiley   +1 more source

A new handle on three-point coefficients: OPE asymptotics from genus two modular invariance

open access: yesJournal of High Energy Physics, 2017
We derive an asymptotic formula for operator product expansion coefficients of heavy operators in two dimensional conformal field theory. This follows from modular invariance of the genus two partition function, and generalises the asymptotic formula for
John Cardy   +2 more
doaj   +1 more source

Classifying three-character RCFTs with Wronskian index equalling 0 or 2

open access: yesJournal of High Energy Physics, 2021
In the modular linear differential equation (MLDE) approach to classifying rational conformal field theories (RCFTs) both the MLDE and the RCFT are identified by a pair of non-negative integers [n,l].
Arpit Das   +2 more
doaj   +1 more source

Nonlinear Realization of Conformal Symmetry

open access: yes, 1974
A nonlinear realization of conformal symmetry which is linear under scale and Lorentz transformations is derived with the aid of the technique developed by Coleman, W ess and Zumino in connection with chiral symmetry.
A. Sato   +5 more
core   +1 more source

Spontaneous symmetry breaking and Nambu–Goldstone bosons in quantum many-body systems [PDF]

open access: yes, 2010
Spontaneous symmetry breaking is a general principle that constitutes the underlying concept of a vast number of physical phenomena ranging from ferromagnetism and superconductivity in condensed matter physics to the Higgs mechanism in the standard model
Brauner, Tomáš
core   +1 more source

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

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