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- Indian Institute of Technology GandhinagarIN282 papers
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4 papers · 2 filters
Superrevivals in the quantum dynamics of a particle confined in a finite square well potential
Anu Venugopalan, G. S. Agarwal
We examine the revival features in wave packet dynamics of a particle confined in a finite square well potential. The possibility of tunneling modifies the revival pattern as compa…
Mesoscopic superpositions of states - approach to classicality and diagonalization in coherent state basis
G. S. Agarwal
I consider the interaction of a superposition of mesoscopic coherent states and its approach to a mixed state as a result of a suitably controlled environment. I show how the prese…
Quantum phase space distributions in thermofield dynamics
S. Chaturvedi, V. Srinivasan, G. S. Agarwal
It is shown that the the quantum phase space distributions corresponding to a density operator can be expressed, in thermofield dynamics, as overlaps between the state $\mid ρ>…
Cavity-induced coherence effects in spontaneous emission from pre-Selection of polarization
Anil K. Patnaik, G. S. Agarwal
Spontaneous emission can create coherences in a multilevel atom having close lying levels, subject to the condition that the atomic dipole matrix elements are non-orthogonal. This…