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Title: Mesoscopic superposition and sub-Planck-scale structure in molecular wave packets

Abstract

We demonstrate the possibility of realizing sub-Planck-scale structures in the mesoscopic superposition of molecular wave packets involving vibrational levels. The time evolution of the wave packet, taken here as the SU(2) coherent state of the Morse potential describing hydrogen iodide molecules, produces macroscopic-quantum-superposition-like states, responsible for the above phenomenon. We investigate the phase-space dynamics of the coherent state through the Wigner function approach and identify the interference phenomena behind the sub-Planck-scale structures. The optimal parameter ranges are specified for observing these features.

Authors:
; ;  [1];  [2]
  1. Physical Research Laboratory, Navrangpura, Ahmedabad-380 009 (India)
  2. University of Massachusetts at Boston, Boston, Massachusetts 02125-3393 (United States)
Publication Date:
OSTI Identifier:
20786740
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevA.73.013411; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ANNIHILATION OPERATORS; EIGENSTATES; HYDRIODIC ACID; INTERFERENCE; MOLECULES; MORSE POTENTIAL; PHASE SPACE; SU-2 GROUPS; VIBRATIONAL STATES; WAVE PACKETS; WIGNER DISTRIBUTION

Citation Formats

Ghosh, Suranjana, Banerji, J., Panigrahi, P. K., and Chiruvelli, Aravind. Mesoscopic superposition and sub-Planck-scale structure in molecular wave packets. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Ghosh, Suranjana, Banerji, J., Panigrahi, P. K., & Chiruvelli, Aravind. Mesoscopic superposition and sub-Planck-scale structure in molecular wave packets. United States. doi:10.1103/PHYSREVA.73.0.
Ghosh, Suranjana, Banerji, J., Panigrahi, P. K., and Chiruvelli, Aravind. Sun . "Mesoscopic superposition and sub-Planck-scale structure in molecular wave packets". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20786740,
title = {Mesoscopic superposition and sub-Planck-scale structure in molecular wave packets},
author = {Ghosh, Suranjana and Banerji, J. and Panigrahi, P. K. and Chiruvelli, Aravind},
abstractNote = {We demonstrate the possibility of realizing sub-Planck-scale structures in the mesoscopic superposition of molecular wave packets involving vibrational levels. The time evolution of the wave packet, taken here as the SU(2) coherent state of the Morse potential describing hydrogen iodide molecules, produces macroscopic-quantum-superposition-like states, responsible for the above phenomenon. We investigate the phase-space dynamics of the coherent state through the Wigner function approach and identify the interference phenomena behind the sub-Planck-scale structures. The optimal parameter ranges are specified for observing these features.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 1,
volume = 73,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2006},
month = {Sun Jan 15 00:00:00 EST 2006}
}