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pro vyhledávání: '"Biswas, Sagar"'
We study pulsating strings both on a single stack of NS5-branes and two orthogonal stacks of NS5-branes (the so called I-brane) by using the Polyakov form of the fundamental string action. For the I-brane background, by using a symmetry that decouple
Externí odkaz:
http://arxiv.org/abs/2307.10765
Autor:
Biswas, Sagar
We revisit semiclassical strings, in particular we focus on rigidly rotating strings, in the near horizon geometry of two orthogonal stacks of NS5-branes (I-branes) using the string sigma model. We determine the conserved charges for the probe string
Externí odkaz:
http://arxiv.org/abs/2305.05164
We use Dirac-Born-Infeld action to study the spinning D-string in $AdS_3 $ background in the presence of both NS-NS and RR fluxes. We compute the scaling relation between the energy (E) and spin (S) in the `long string limit'. The energy of these spi
Externí odkaz:
http://arxiv.org/abs/2003.08604
Akademický článek
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The $AdS_3\times S^3$ string sigma model supported both by NS-NS and R-R fluxes has become a well known integrable model, however a putative dual field theory description remains incomplete. We study the anomalous dimensions of twist operators in thi
Externí odkaz:
http://arxiv.org/abs/1906.06879
Autor:
Biswas, Sagar1 (AUTHOR), Padhi, Nibedita2 (AUTHOR) nibedita.phy@iitkgp.ac.in, Panigrahi, Kamal L.2 (AUTHOR)
Publikováno v:
European Physical Journal C -- Particles & Fields. Feb2024, Vol. 84 Issue 2, p1-14. 14p.
We study multi spin semiclassical strings in $AdS_3\times S^3 \times T^4$ background supported by a mixture of Neveu-Schwarz-Neveu-Schwarz (NS-NS) and Ramond-Ramond (R-R) fluxes. This `mixed flux' background has been recently proved to be classically
Externí odkaz:
http://arxiv.org/abs/1806.10934
We study various rotating and oscillating D-string configurations in some general backgrounds with fluxes. In particular, we look for solutions to the equations of motion of various rigidly rotating D-strings in $AdS_3$ background with mixed flux, an
Externí odkaz:
http://arxiv.org/abs/1601.06360
Autor:
Biswas, Sagar, Panigrahi, Kamal L.
We probe the open fundamental strings in Dp-brane (p=1, 3, 5) backgrounds and find new classes of rotating and orbiting string solutions. We show that for various worldsheet embedding ansatz we get solutions of the string equations of motion that cor
Externí odkaz:
http://arxiv.org/abs/1412.6941
Akademický článek
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