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Найдено 125 публикаций
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Статья
Gavrylenko P., Marshakov A. Journal of High Energy Physics. 2016. Vol. 2016. No. 2. P. 1-31.

We consider the conformal blocks in the theories with extended conformal W-symmetry for the integer Virasoro central charges. We show that these blocks for the generalized twist fields on sphere can be computed exactly in terms of the free field theory on the covering Riemann surface, even for a non-abelian monodromy group. The generalized twist fields are identified with particular primary fields of the W-algebra, and we propose a straightforward way to compute their W-charges. We demonstrate how these exact conformal blocks can be effectively computed using the technique arisen from the gauge theory/CFT correspondence. We discuss also their direct relation with the isomonodromic tau-function for the quasipermutation monodromy data, which can be an encouraging step on the way of definition of generic conformal blocks for W-algebra using the isomonodromy/CFT correspondence.

Добавлено: 14 июня 2016
Статья
Bershtein M., Bonelli G., Tanzini A. et al. Journal of High Energy Physics. 2016. No. 723. P. 39.
Добавлено: 6 октября 2016
Статья
Semenov-Tian-Shansky Kirill M., Polyakov M. V., Sokolova N. et al. Journal of High Energy Physics. 2019. Vol. 04. No. 007. P. 1-22.
Добавлено: 29 сентября 2020
Статья
Linzen J., Polyakov M., Semenov-Tian-Shansky K. et al. Journal of High Energy Physics. 2021. Vol. 05.
Добавлено: 3 июня 2021
Статья
Abzalov A., Bakhmatov I., Musaev E. Journal of High Energy Physics. 2015. No. 6, Article number 88.

We construct Exceptional Field Theory for the group SO(5, 5) based on the extended (6+16)-dimensional spacetime, which after reduction gives the maximal D = 6 supergravity. We present both a true action and a duality-invariant pseudo-action formulations. All the fields of the theory depend on the complete extended spacetime. The U-duality group SO(5, 5) is made a geometric symmetry of the theory by virtue of introducing the generalised Lie derivative that incorporates a duality transformation. Tensor hierarchy appears as a natural consequence of the algebra of generalised Lie derivatives that are viewed as gauge transformations. Upon truncating different subsets of the extra coordinates, maximal supergravities in D = 11 and D = 10 (type IIB) can be recovered from this theory. © 2015, The Author(s).

Добавлено: 7 сентября 2015
Статья
Nekrasov N., Marshakov A. Journal of High Energy Physics. 2007. No. 0701. P. 104.
Добавлено: 18 октября 2012
Статья
Musaev E. Journal of High Energy Physics. 2015. Vol. 2015. No. 3.
Добавлено: 18 марта 2015
Статья
Аушев Т. А., Mizuk R., Pakhlov P. et al. Journal of High Energy Physics. 2019. Vol. 2019. No. 10. P. 1-31.
Добавлено: 28 октября 2020
Статья
Ratnikov F., Баранов А. С., Borisyak M. et al. Journal of High Energy Physics. 2018. Vol. 2018. P. 1-31.
Добавлено: 4 июня 2018
Статья
Derkach D., Aaij R. Journal of High Energy Physics. 2013. Vol. 183. P. 1310.
Добавлено: 9 июля 2015
Статья
Gamayun O., Losev A. S., Marshakov A. Journal of High Energy Physics. 2009. No. 0909(028). P. 1-13.
Добавлено: 18 октября 2012
Статья
Gamayun O., Marshakov A. Journal of High Energy Physics. 2009. No. 0909(065). P. 1-22.
Добавлено: 18 октября 2012
Статья
Аушев Т. А., Mizuk R., Pakhlov P. et al. Journal of High Energy Physics. 2020. Vol. 2020. No. 05. P. 1-26.
Добавлено: 28 октября 2020
Статья
Musaev E. Journal of High Energy Physics. 2013. Vol. 1305.
Добавлено: 20 октября 2014
Статья
Grekov A., Sechin I., Zotov A. Journal of High Energy Physics. 2019. Vol. 10. No. 081. P. 1-32.
Добавлено: 15 октября 2019
Статья
Belavin V., Geiko R. Journal of High Energy Physics. 2017. Vol. 125. P. 1-13.

We continue to investigate the dual description of the Virasoro conformal blocks arising in the framework of the classical limit of the AdS3/CFT2 correspondence. To give such an interpretation in previous studies, certain restrictions were necessary. Our goal here is to consider a more general situation available through the worldline approximation to the dual AdS gravity. Namely, we are interested in computing the spherical conformal blocks without the previously imposed restrictions on the conformal dimensions of the internal channels. The duality is realised as an equality of the so-called heavy-light limit of the n-point conformal block and the action of n−2 particles propagating in some AdS-like background with either a conical singularity or a BTZ black hole. We describe a procedure that allows relaxing the constraint on the intermediate channels. To obtain an explicit expression for the conformal block on the CFT side, we use a recently proposed recursion procedure and find full agreement between the results of the boundary and bulk computations.

Добавлено: 31 августа 2017
Статья
Koile E., Kovensky N., Schvellinger M. Journal of High Energy Physics. 2015. Vol. 2015. No. 1. P. 1-48.
Добавлено: 31 октября 2019
Статья
Bershtein M., Белавин А. А., Белавин В. А. Journal of High Energy Physics. 2011. Vol. 9. No. 117.
Добавлено: 23 октября 2014
Статья
Mironov A., Morozov A., Natanzon S. M. Journal of High Energy Physics. 2011. No. 11(097). P. 1-31.

Correlators in topological theories are given by the values of a linear form on the products of operators from a commutative associative algebra (CAA). As a corollary, partition functions of topological theory always satisfy the generalized WDVV equations of. We consider the Hurwitz partition functions, associated in this way with the CAA of cut-and-join operators. The ordinary Hurwitz numbers for a given number of sheets in the covering provide trivial (sums of exponentials) solutions to the WDVV equations, with finite number of time-variables. The generalized Hurwitz numbers from provide a non-trivial solution with infinite number of times. The simplest solution of this type is associated with a subring, generated by the dilatation operators ˆW1 = trD = trX@/@X.

Добавлено: 12 октября 2012
Статья
Akhmedov E. Journal of High Energy Physics. 2012. Vol. 1201. P. 066.

We explicitly show that the one loop IR correction to the two--point function in de Sitter space scalar QFT does not reduce just to the mass renormalization. The proper interpretation of the loop corrections is via particle creation revealing itself through the generation of the quantum averages $<a^+_p a_p>$, $<a_p a_{-p}>$ and $<a^+_p a^+_{-p}>$, which slowly change in time. We show that this observation in particular means that loop corrections to correlation functions in de Sitter space can not be obtained via analytical continuation of those calculated on the sphere.  We find harmonics for which the particle number $<a^+_p a_p>$ dominates over the anomalous expectation values $<a_p a_{-p}>$ and $<a^+_p a^+_{-p}>$. For these harmonics the Dyson--Schwinger equation reduces in the IR limit to the kinetic equation. We solve the latter equation, which allows us to sum up all loop leading IR contributions to the Whiteman function. We perform the calculation for the principle series real scalar fields both in expanding and contracting Poincare patches.

Добавлено: 17 февраля 2013
Статья
Gavrylenko P. Journal of High Energy Physics. 2015. No. 09. P. 167.
Добавлено: 9 октября 2015