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- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT7 papers
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5 papers · 1 filter
Some intricacies of the momentum operator in quantum mechanics
Utpal Roy, Suranjana Ghosh, Kaushik Bhattacharya
In quantum mechanics textbooks the momentum operator is defined in the Cartesian coordinates and rarely the form of the momentum operator in spherical polar coordinates is discusse…
Slow Light in Doppler Broadened Two level Systems
G. S. Agarwal, Tarak Nath Dey
We show that the propagation of light in a Doppler broadened medium can be slowed down considerably eventhough such medium exhibits very flat dispersion. The slowing down is achiev…
Sub and Super-Luminal Propagation of Intense Pulses in Media with Saturated and Reverse Absorption
G. S. Agarwal, T. N. Dey
We develop models for the propagation of intense pulses in solid state media which can have either saturated absorption or exhibit reverse absorption . We show that the experiments…
Entanglement production in coupled chaotic systems : Case of the Kicked Tops
Jayendra N. Bandyopadhyay, Arul Lakshminarayan
Entanglement production in coupled chaotic systems is studied with the help of kicked tops. Deriving the correct classical map, we have used the reduced Husimi function, the Husimi…
From Storage and Retrieval of Pulses to Adiabatons
Tarak Nath Dey, G. S. Agarwal
We investigate whether it is possible to store and retrieve the intense probe pulse from a -type homogeneous medium of cold atoms. Through numerical simulations we show that it…