116 citations · 343 across the 12 of their papers we have counts for
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Functional integral treatment of some quantum nondemolition systems
Subhashish Banerjee, R. Ghosh
In the scheme of a quantum nondemolition (QND) measurement, an observable is measured without perturbing its evolution. In the context of studies of decoherence in quantum computin…
Structure of propagators for quantum nondemolition systems
Subhashish Banerjee, R. Ghosh
In the scheme of a quantum nondemolition (QND) measurement, an observable is measured without perturbing its evolution. In the context of studies of decoherence in quantum computin…
An environment-mediated quantum deleter
R. Srikanth, Subhashish Banerjee
Environment-induced decoherence presents a great challenge to realizing a quantum computer. We point out the somewhat surprising fact that decoherence can be useful, indeed necessa…
Geometric Phase of a qubit interacting with a squeezed-thermal bath
Subhashish Banerjee, R. Srikanth
We study the geometric phase of an open two-level quantum system under the influence of a squeezed, thermal environment for both non-dissipative as well as dissipative system-envir…
Symmetries and noise in quantum walk
C. M. Chandrashekar, R. Srikanth, Subhashish Banerjee
We study some discrete symmetries of unbiased (Hadamard) and biased quantum walk on a line, which are shown to hold even when the quantum walker is subjected to environmental effec…