123 citations · 185 across the 7 of their papers we have counts for
3 papers · 1 filter
Partial decoherence in a qubit coupled to a control register subject to telegraph noise
Amnon Aharony, Ora Entin-Wohlman, Sushanta Dattagupta
A qubit (containing two quantum states, 1 and 2), is coupled to a control register (state 3), which is subject to telegraph noise. We study the time evolution of the density matrix…
Dissipative diamagnetism with anomalous coupling and third law
Malay Bandyopadhyay, Sushanta Dattagupta
In this work, low temperature thermodynamic behaviour in the context of dissipative diamagnetism with anomalous coupling is analyzed. We find that finite dissipation substitutes th…
Landau diamagnetism revisited
S. Dattagupta, A. M. Jayannavar, N. Kumar
The problem of diamagnetism, solved by Landau, continues to pose fascinating issues which have relevance even today. These issues relate to inherent quantum nature of the problem,…