Kashif Ammar Yasir | Chinese Academy of Sciences (original) (raw)

Papers by Kashif Ammar Yasir

We explain dynamical localization of Bose-Einstein condensate (BEC) in optomechanics both in posi... more We explain dynamical localization of Bose-Einstein condensate (BEC) in optomechanics both in position and in momentum space. The experimentally realizable optomechanical system is a Fabry-Perot cavity with one moving end mirror and driven by single mode standing field. In our study we analyze variations in modulation strength and effective Plank's constant. Keeping in view present day experimental advances we provide set of parameters to observe the phenomenon in laboratory.

Journal of Modern Optics, 2014

We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry... more We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry-Perot cavity loaded with dilute condensate and driven by a single mode optical field. It is shown that quantum mechanical phenomenon of dynamical localization occurs both in position and momentum space for moving end mirror in the system. The parametric dependencies of dynamical localization are discussed. We also provide a set of parameters which makes this phenomenon experimentally feasible.

Cavity-optomechanics, a rapidly developing area of research, has made a remarkable progress. A st... more Cavity-optomechanics, a rapidly developing area of research, has made a remarkable progress. A
stunning manifestation of optomechanical phenomena is in exploiting the mechanical effects of
light to couple the optical degree of freedom with mechanical degree of freedom. In this report,
we investigate the controlled bistable dynamics of such hybrid optomechanical system composed
of cigar-shaped Bose-Einstein condensate (BEC) trapped inside high-finesse optical cavity with
one moving-end mirror and is driven by a single mode optical field. The numerical results provide
evidence for controlled optical bistability in optomechanics using transverse optical field which
directly interacts with atoms causing the coupling of transverse field with momentum side modes,
exited by intra-cavity field. This technique of transverse field coupling is also used to control
bistable dynamics of both moving-end mirror and BEC. The report provides an understanding
of temporal dynamics of moving-end mirror and BEC with respect to transverse field. Moreover,
dependence of effective potential of the system on transverse field has also been discussed. To
observe this phenomena in laboratory, we have suggested a certain set of experimental parameters.
These findings provide a platform to investigate the tunable behavior of novel phenomenon like
electromagnetically induced transparency and entanglement in hybrid systems.

Journal of Modern Optics, 2014

We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry... more We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry-Perot cavity loaded with dilute condensate and driven by a single mode optical field. It is shown that quantum mechanical phenomenon of dynamical localization occurs both in position and momentum space for moving end mirror in the system. The parametric dependencies of dynamical localization are discussed. We also provide a set of parameters which makes this phenomenon experimentally feasible.

Laser Physics, 2014

ABSTRACT We explain dynamical localization of Bose–Einstein condensate (BEC) in optomechanics bot... more ABSTRACT We explain dynamical localization of Bose–Einstein condensate (BEC) in optomechanics both in position and in momentum space. The experimentally realizable optomechanical system is a Fabry–Pérot cavity with one moving end mirror driven by a single mode standing field. In our study we analyze variations in modulation strength and effective Planck's constant. Keeping in mind present day experimental advancements, we suggest parameteric values to observe the phenomenon in the laboratory.

We explain dynamical localization of Bose-Einstein condensate (BEC) in optomechanics both in posi... more We explain dynamical localization of Bose-Einstein condensate (BEC) in optomechanics both in position and in momentum space. The experimentally realizable optomechanical system is a Fabry-Perot cavity with one moving end mirror and driven by single mode standing field. In our study we analyze variations in modulation strength and effective Plank's constant. Keeping in view present day experimental advances we provide set of parameters to observe the phenomenon in laboratory.

Journal of Modern Optics, 2014

We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry... more We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry-Perot cavity loaded with dilute condensate and driven by a single mode optical field. It is shown that quantum mechanical phenomenon of dynamical localization occurs both in position and momentum space for moving end mirror in the system. The parametric dependencies of dynamical localization are discussed. We also provide a set of parameters which makes this phenomenon experimentally feasible.

Cavity-optomechanics, a rapidly developing area of research, has made a remarkable progress. A st... more Cavity-optomechanics, a rapidly developing area of research, has made a remarkable progress. A
stunning manifestation of optomechanical phenomena is in exploiting the mechanical effects of
light to couple the optical degree of freedom with mechanical degree of freedom. In this report,
we investigate the controlled bistable dynamics of such hybrid optomechanical system composed
of cigar-shaped Bose-Einstein condensate (BEC) trapped inside high-finesse optical cavity with
one moving-end mirror and is driven by a single mode optical field. The numerical results provide
evidence for controlled optical bistability in optomechanics using transverse optical field which
directly interacts with atoms causing the coupling of transverse field with momentum side modes,
exited by intra-cavity field. This technique of transverse field coupling is also used to control
bistable dynamics of both moving-end mirror and BEC. The report provides an understanding
of temporal dynamics of moving-end mirror and BEC with respect to transverse field. Moreover,
dependence of effective potential of the system on transverse field has also been discussed. To
observe this phenomena in laboratory, we have suggested a certain set of experimental parameters.
These findings provide a platform to investigate the tunable behavior of novel phenomenon like
electromagnetically induced transparency and entanglement in hybrid systems.

Journal of Modern Optics, 2014

We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry... more We discuss the dynamics of moving end mirror of an optomechanical system that consists of a Fabry-Perot cavity loaded with dilute condensate and driven by a single mode optical field. It is shown that quantum mechanical phenomenon of dynamical localization occurs both in position and momentum space for moving end mirror in the system. The parametric dependencies of dynamical localization are discussed. We also provide a set of parameters which makes this phenomenon experimentally feasible.

Laser Physics, 2014

ABSTRACT We explain dynamical localization of Bose–Einstein condensate (BEC) in optomechanics bot... more ABSTRACT We explain dynamical localization of Bose–Einstein condensate (BEC) in optomechanics both in position and in momentum space. The experimentally realizable optomechanical system is a Fabry–Pérot cavity with one moving end mirror driven by a single mode standing field. In our study we analyze variations in modulation strength and effective Planck's constant. Keeping in mind present day experimental advancements, we suggest parameteric values to observe the phenomenon in the laboratory.