Zobrazeno 1 - 10
of 24
pro vyhledávání: '"De Sarkar, Sangita"'
Publikováno v:
J. Phys.: Condens. Matter 32 (2020) 235301
We study the transport properties of Dirac electrons across a two-dimensional normal metal-barrier-normal metal (NBN) interfaces in monolayer borophane. We analyse the transmission probability with variation of the width of the barrier region, the in
Externí odkaz:
http://arxiv.org/abs/1909.07664
We study transport properties of a phosphorene monolayer in the presence of single and multiple potential barriers of height $U_0$ and width $d$, using both continuum and microscopic lattice models, and show that the nature of electron transport alon
Externí odkaz:
http://arxiv.org/abs/1610.02406
Publikováno v:
Phys. Rev. B 92, 174529 (2015)
Interacting bosons with two "spin'' states in a lattice show novel superfluid-insulator phase transitions in the presence of spin-orbit coupling. Depending on the parameter regime, bosons in the superfluid phase can condense to either a zero momentum
Externí odkaz:
http://arxiv.org/abs/1505.06372
We use a perturbative momentum shell renormalization group (RG) approach to study the properties of a driven quantum system at zero temperature. To illustrate the technique, we consider a bosonic $\phi^4$ theory with an arbitrary time dependent inter
Externí odkaz:
http://arxiv.org/abs/1308.4689
Autor:
Chowdhury, Abhishek, De, Asit K., De Sarkar, Sangita, Harindranath, A., Maiti, Jyotirmoy, Mondal, Santanu, Sarkar, Anwesa
We calculate pion mass, pion decay constant, PCAC quark mass and nucleon mass in two flavour lattice QCD with unimproved Wilson fermion and gauge actions. Simulations are performed using DD-HMC algorithm at two lattice spacings and two volumes for se
Externí odkaz:
http://arxiv.org/abs/1212.0717
Autor:
Chowdhury, Abhishek, De, Asit K., De Sarkar, Sangita, Harindranath, A., Maiti, Jyotirmoy, Mondal, Santanu, Sarkar, Anwesa
We perform an extensive study of autocorrelation of several observables in lattice QCD with two degenerate flavours of naive Wilson fermions and unimproved Wilson gauge action using DD-HMC algorithm. We show that (1) at a given lattice spacing, autoc
Externí odkaz:
http://arxiv.org/abs/1209.3915
Autor:
Chowdhury, Abhishek, De, Asit K., De Sarkar, Sangita, Harindranath, A., Mondal, Santanu, Sarkar, Anwesa, Maiti, Jyotirmoy
We study the topological charge and the topological susceptibility in lattice QCD with two degenerate flavors of naive Wilson fermions at two values of lattice spacings and different volumes, for a range of quark masses. Configurations are generated
Externí odkaz:
http://arxiv.org/abs/1111.1812
Autor:
Chowdhury, Abhishek, De, Asit K., De Sarkar, Sangita, Harindranath, A., Mondal, Santanu, Sarkar, Anwesa, Maiti, Jyotirmoy
We address a long standing problem regarding topology in lattice simulations of QCD with unimproved Wilson fermions. Earlier attempt with unimproved Wilson fermions at \beta =5.6 to verify the suppression of topological susceptibility with decreasing
Externí odkaz:
http://arxiv.org/abs/1110.6013
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