Results 1 to 10 of about 39,299 (273)

Optical Polarimetry for Fundamental Physics [PDF]

open access: yesUniverse, 2021
Sensitive magneto-optical polarimetry was proposed by E. Iacopini and E. Zavattini in 1979 to detect vacuum electrodynamic non-linearity, in particular Vacuum Magnetic Birefringence (VMB). This process is predicted in QED via the fluctuation of electron–positron virtual pairs but can also be due to hypothetical Axion-Like Particles (ALPs) and/or ...
Guido Zavattini, Federico Della Valle
openaire   +6 more sources

The Optics in Physics textbooks

open access: yesOptica Pura y Aplicada, 2021
Se agradece también al Ministerio de Ciencia, Innovación y Universidades de España por el apoyo financiero parcial en los proyectos PGC2018-101814-B-I00 y PGC2018-101948-B-I00.
Álvarez Jubete, E.   +2 more
openaire   +2 more sources

Polaron physics in optical lattices [PDF]

open access: yesPhysical Review A, 2007
We investigate the effects of a nearly uniform Bose-Einstein condensate (BEC) on the properties of immersed trapped impurity atoms. Using a weak-coupling expansion in the BEC-impurity interaction strength, we derive a model describing polarons, i.e., impurities dressed by a coherent state of Bogoliubov phonons, and apply it to ultracold bosonic atoms ...
Bruderer, Martin   +3 more
openaire   +7 more sources

A parallel algorithm for solving one problem of nonlinear optics

open access: yesMathematical Modelling and Analysis, 1999
This paper deals with a system of nonlinear differential equations, which describe the interaction of two focused laser beams in nonlinear media. The system of equations is approximated by a splitting finite difference scheme.
R. Čiegis, A. Dement'ev, P. Rate
doaj   +1 more source

The physics of optical computing

open access: yesNature Reviews Physics, 2023
There has been a resurgence of interest in optical computing over the past decade, both in academia and in industry, with much of the excitement centered around special-purpose optical computers for neural-network processing. Optical computing has been a topic of periodic study for over 50 years, including for neural networks three decades ago, and a ...
openaire   +2 more sources

A Treatise on Physical Optics [PDF]

open access: yesNature, 1892
A NEW treatise on the higher branches of physical optics must be welcome to all who are interested in the subject. Mr. Basset explains in the preface the scope and aim of his book, and it is needless to say that he performs the task he has set himself with ability and success.
openaire   +2 more sources

Basset's Physical Optics [PDF]

open access: yesNature, 1892
I DESIRE to make a few remarks on Prof. Schuster's review of my treatise on physical optics.
openaire   +2 more sources

Mechanistic basis for inhibition of the extended‐spectrum β‐lactamase GES‐1 by enmetazobactam and tazobactam

open access: yesFEBS Letters, EarlyView.
Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer   +10 more
wiley   +1 more source

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

open access: yesFEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur   +5 more
wiley   +1 more source

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

open access: yesFEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii   +8 more
wiley   +1 more source

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