Results 31 to 40 of about 43,904 (250)

Finite size effect from classical strings in deformed AdS3× S3

open access: yesJournal of High Energy Physics, 2018
We study the finite size effect of rigidly rotating and spinning folded strings in (AdS 3 × S 3) ϰ background. We calculate the leading order exponential corrections to the infinite size dispersion relation of the giant magnon, and single spike solutions.
Kamal L. Panigrahi, Manoranjan Samal
doaj   +1 more source

Strings, symmetric products, TT¯ deformations and Hecke operators

open access: yesPhysics Letters B, 2020
We derive a formula for the torus partition sum of the symmetric product of TT¯ deformed CFT's, using previous work on long strings in (deformed) AdS3, and universality. The result is given by an integral transform of the partition function for the block
Akikazu Hashimoto, David Kutasov
doaj   +1 more source

The ability of oriental magpies (Pica serica) to solve baited multiple-string problems [PDF]

open access: yesPeerJ, 2020
Background Baited multiple-string problems are commonly used in avian laboratory studies to evaluate complex cognition. Several bird species possess the ability to use a string pull for obtaining food.
Lin Wang   +3 more
doaj   +2 more sources

Searching for long strings in CMB maps [PDF]

open access: yesPhysical Review D, 1998
Using analytical methods and Monte Carlo simulations, we analyze new statistics designed to detect isolated step-like discontinuities which are coherent over large areas of Cosmic Microwave Background (CMB) pixel maps. Such coherent temperature discontinuities are predicted by the Kaiser-Stebbins effect to form due to long cosmic strings present in our
openaire   +3 more sources

Gravitational Interaction in a Null String Gas and Its Possible Consequences

open access: yesUniverse, 2020
In this paper, we investigated the possible consequences of gravitational interaction in a gas of null strings. The structural elements of this gas are closed null strings in the form of a circle (thin closed tubes of massless scalar field).
Alexander Lelyakov
doaj   +1 more source

A defect in AdS3/CFT2 duality

open access: yesJournal of High Energy Physics, 2022
AdS3 string theory in the stringy regime k = (R AdS /ℓ s )2 < 1 provides a laboratory for the study of holography in which both sides of AdS/CFT duality are under fairly good control.
Emil J. Martinec
doaj   +1 more source

Free fermion cyclic/symmetric orbifold CFTs and entanglement entropy

open access: yesJournal of High Energy Physics, 2022
In this paper we study the properties of two-dimensional CFTs defined by cyclic and symmetric orbifolds of free Dirac fermions, especially by focusing on the partition function and entanglement entropy.
Tadashi Takayanagi, Takashi Tsuda
doaj   +1 more source

Long string dynamics in pure gravity on AdS3 [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 2015
We study the classical dynamics of a completion of pure AdS gravity in 3D, whose only degrees of freedom are boundary gravitons and long strings. We argue that the best regime for describing pure gravity is that of "heavy" strings, for which back-reaction effects on the metric must be taken into account.
Kim, Jihun, Porrati, Massimo
openaire   +2 more sources

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Black hole entropy and long strings

open access: yesInternational Journal of Modern Physics D, 2022
In this paper, we discuss whether black hole entropy counts short or long-range microstates in quantum gravity. In brick wall and induced gravity models, the entropy arises due to short distance correlations across the event horizon cut off at the Planck length.
Verlinde, E.P., Visser, M.R.
openaire   +4 more sources

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