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gr-qc2023
Stationary equilibrium torus supported by Weyssenhoff ideal spin fluid in Schwarzschild spacetime -- I: Case of constant specific angular momentum distribution
Sayantani Lahiri, Claus Laemmerzahl
We consider a non-self-gravitating geometrically thick torus described by Weyssenhoff ideal spin fluid in a black hole spacetime. The Weyssenhof spin fluid shares the same symmetri…
gr-qc2023★ 3 cited
Sustaining quasi de-Sitter inflation with bulk viscosity
Sayantani Lahiri, Luciano Rezzolla
We here investigate bulk-viscosity driven quasi de-Sitter inflation, that is, the period of accelerated expansion in the early universe during which , with …
cond-mat.quant-gas2023★ 6 cited
Quantum phases of constrained bosons on a two-leg Bose-Hubbard ladder
Ashirbad Padhan, Rajashri Parida, Sayan Lahiri +2
Bosons in periodic potentials with very strong local interactions, known as the constrained bosons often exhibit interesting physical behavior. We investigate the ground state prop…