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- Indian Institute of Technology GandhinagarIN282 papers
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7 papers · 2 filters
Inseparability inequalities for higher-order moments for bipartite systems
G. S. Agarwal, Asoka Biswas
There are several examples of bipartite entangled states of continuous variables for which the existing criteria for entanglement using the inequalities involving the second order…
Mesoscopic superposition and sub-Planck-scale structure in molecular wave packets
Suranjana Ghosh, Aravind Chiruvelli, J. Banerji +1
We demonstrate the possibility of realizing sub-Planck-scale structures in the mesoscopic superposition of molecular wave packets involving vibrational levels. The time evolution o…
Bound States and Band Structure - a Unified Treatment through the Quantum Hamilton - Jacobi Approach
S. Sree Ranjani, A. K. Kapoor, P. K. Panigrahi
We analyze the Scarf potential, which exhibits both discrete energy bound states and energy bands, through the quantum Hamilton-Jacobi approach. The singularity structure and the b…
Quantum interferences from cross talk in transitions
Shubhrangshu Dasgupta
We consider the possibility of a control field opening up multiple pathways and thereby leading to new interference and coherence effects. We illustrate the idea by considering the…
Extreme sub-wavelength atom localization via coherent population trapping
Girish S. Agarwal, Kishore T. Kapale
We demonstrate an atom localization scheme based on monitoring of the atomic coherences. We consider atomic transitions in a Lambda configuration where the control field is a stand…
Entanglement production in Quantized Chaotic Systems
Jayendra N. Bandyopadhyay, Arul Lakshminarayan
Quantum chaos is a subject whose major goal is to identify and to investigate different quantum signatures of classical chaos. Here we study entanglement production in coupled chao…