967 citations
- Abdus Salam Centre for PhysicsPK7 papers
- University of ArizonaUS5 papers
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- Institute of High Energy PhysicsCN3 papers
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- Hunter CollegeUS1 paper
- Imperial College LondonGB1 paper
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9 papers · 2 filters
Coherent Acceleration of Material Wavepackets
Farhan Saif, Pierre Meystre
We study the quantum dynamics of a material wavepacket bouncing off a modulated atomic mirror in the presence of a gravitational field. We find the occurrence of coherent accelerat…
Entanlement-Assisted Classical Capacity of Quantum Channels with Correlated Noise
Nigum Arshed, A. H. Toor
We calculate the entanglement-assisted classical capacity of symmetric and asymmetric Pauli channels where two consecutive uses of the channels are correlated. It is evident from o…
Nature of quantum recurrences in coupled higher dimensional systems
Farhan Saif
We investigate recurrence phenomena in coupled two degrees of freedom systems. It is shown that an initial well localized wave packet displays recurrences even in the presence of c…
Classical and Quantum Chaos in Atom Optics
Farhan Saif
The interaction of an atom with an electromagnetic field is discussed in the presence of a time periodic external modulating force. It is explained that a control on atom by electr…
Recurrence Tracking Microscope
Farhan Saif
In order to probe nanostructures on a surface we present a microscope based on the quantum recurrence phenomena. A cloud of atoms bounces off an atomic mirror connected to a cantil…
Quantum Recurrences in Driven Power-law Potentials
Shahid Iqbal, Qurat-ul-Ann, Farhan Saif
The recurrence phenomena of an initially well localized wave packet are studied in periodically driven power-law potentials. For our general study we divide the potentials in two k…