Results 221 to 230 of about 6,634 (264)

Electric field switching of chiral phonons

open access: yes
Grimes M   +10 more
europepmc   +1 more source

A physical interpretation of coupling chiral metaatoms

Nanoscale, 2022
The microscopic origins of chiroptical response in metasurfaces are studied based on temporal coupled-mode theory and quasinormal modes. Using a biorthogonal approach, the model identifies a critical coupling condition for unity circular dichroism.
Zhaolong Cao   +3 more
openaire   +2 more sources

Check for Chirality in Nuclear Physics

AIP Conference Proceedings, 2006
Exited states in 134Pr were populated in the fusion‐evaporation reaction 119Sn(19F, 4n)134Pr. Recoil distance Doppler‐shift and Doppler‐shift attenuation measurements using the Euroball spectrometer, in conjunction with the inner BGO ball and the Cologne plunger, were performed at beam energies of 87 MeV and 83 MeV, respectively.
D. TONEV   +19 more
openaire   +3 more sources

Chiral Physical Forces

2022
The effect of physical chiral forces as deterministic mechanisms is covered in this chapter. Among the four fundamental forces, the weak interaction is the only one that can have a differential effect on chirality, or, expressed in other terms, it is an interaction that violates parity.
openaire   +1 more source

Invitation to chiral physics

Ferroelectrics, 1997
Abstract Although measurement of the optical activity of solids had been impossible for 170 years since its discovery by Arago (1811), we have developed a method called HAUP (high accuracy universal polarimeter), which enables one to measure simultaneously optical activity, birefringence, and rotation of the indicatrix of any crystals, even those ...
openaire   +1 more source

Chirality as a problem of biochemical physics

Russian Journal of General Chemistry, 2007
Molecular chiral asymmetry, created in the biosphere during biological evolution, is unambiguously realized in today’s world at the genetic level and in biosynthesis. According to our hypothesis, origination of molecular chiral asymmetry is associated with fractionation of enantiomers of chiral compounds that abiogenously evolved at the ocean ...
V. A. Tverdislov   +2 more
openaire   +1 more source

Chirality: A Relational Geometric‐Physical Property

Chirality, 2013
ABSTRACTThe definition of the term chirality by Lord Kelvin in 1893 and 1904 is analyzed by taking crystallography at that time into account. This shows clearly that chirality is a relational geometric‐physical property, i.e., two relations between isometric objects are possible: homochiral or heterochiral.
openaire   +2 more sources

Chiral physics, quarks, and NN forces

Nuclear Physics A, 2001
The problem of the derivation of effective quark kernels in the QCD non-perturbative regime is discussed. We argue that the physics of spontaneous breakdown of chiral symmetry acts like a filter for the details of such kernels, allowing for a quantitative discussion of low-energy hadronic phenomena despite the lack of knowledge of their precise form ...
openaire   +1 more source

Physical properties of wave scattering by a chiral grating

Journal of the Optical Society of America A, 2004
Wave scattering by a chiral grating is studied in this paper. Numerical results are given, and physical properties are discussed, including the influence of frequency, angle of incidence, and aspect ratio. At high frequencies we find anomalous coupling regions known as Wood's anomalies, which are explained by the excitation and reradiation of leaky ...
Yang, Xiaomin   +2 more
openaire   +3 more sources

Physics of chiral symmetry breaking

Nuclear Physics A, 1991
Abstract This subsection of the “Modeling QCD” Workshop has included five talks. E. Shuryak spoke on “Recent Progress in Understanding Chiral Symmetry Breaking”; below it is split into two parts: (i) a mini-review of the field and (ii) a brief presentation of the status of the theory of interacting instantons.
openaire   +1 more source

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