M. Suhail Zubairy

Noise and deviation effects in a bichromatic Raman white light cavity (2009)

Sun, Qingqing, Shahriar, M. Selim, Zubairy, M. Suhail

We analyze the effects of noise and parameter deviations in a bichromatic Raman type white light cavity, with potential applications in precision measurements such as gravitational wave detection....

Entanglement criteria and nonlocality for multi-mode continuous variable systems (2009)

Sun, Qingqing, Nha, Hyunchul, Zubairy, M. Suhail

We demonstrate how to efficiently derive a broad class of inequalities for entanglement detection in multi-mode continuous variable systems. The separability conditions are established from partial...

Entanglement of Gaussian states using beam splitter (2008)

Tahira, Rabia, Ikram, Manzoor, Nha, Hyunchul, Zubairy, M. Suhail

We study an experimental scheme to generate Gaussian two-mode entangled states via beam splitter. Specifically, we consider a nonclassical Gaussian state (squeezed state) and a thermal state as two...

Hanbury Brown-Twiss effect and thermal light ghost imaging (2008)

Wang, Li-Gang, Qamar, Sajid, Zhu, Shi-Yao, Zubairy, M. Suhail

We show that the essential physics of the Hanbury Brown-Twiss (HBT) and the thermal light ghost imaging experiments is the same, i.e., due to the intensity fluctuations of the thermal light. However,...

Time and the Quantum: Erasing the Past and Impacting the Future (2008)

J. J. Bollinger, W. M. Itano, D. J. Winel, D. J. Heinzen, Phys Rev A, V. Giovannetti, ...

15. Another way to find evidence for a cat, not discussed here, is to disentangle the particles, but this also amounts to recombination and destroys the cat.

Uncertainty inequalities as entanglement criteria for negative partial-transpose states (2008)

Nha, Hyunchul, Zubairy, M. Suhail

In this Letter, we show that the fulfillment of uncertainty relations is a sufficient criterion for a quantum-mechanically permissible state. We specifically construct two pseudo-spin observables for...

Proposal for direct measurement of concurrence via visibility in a cavity QED system (2008)

Lee, Sang Min, Ji, Se-Wan, Lee, Hai-Woong, Zubairy, M. Suhail

An experimental scheme is proposed that allows direct measurement of the concurrence of a two-qubit cavity system. It is based on the cavity-QED technology using atoms as flying qubits and relies on...

Optical imaging beyond the diffraction limit via dark states (2008)

Li, Hebin, Sautenkov, Vladimir A., Kash, Michael M., Sokolov, Alexei V., Welch, George R., Rostovtsev, Yuri V., ...

We study the possibility of creating spatial patterns having subwavelength size by using the so-called dark states formed by the interaction between atoms and optical fields. These optical fields...

Planck, Photon Statistics, and Bose-Einstein Condensation (2007)

Greenberger, Daniel M., Erez, Noam, Scully, Marlan O., Svidzinsky, Anatoly A., Zubairy, M. Suhail

The interplay between optical and statistical physics is a rich and exciting field of study. Black body radiation was the first application of photon statistics, although it was initially treated as...

Control of Goos-Hanchen shift of a light beam via a coherent driving field (2007)

Wang, Li-Gang, Ikram, Manzoor, Zubairy, M. Suhail

We present a proposal to manipulate the Goos-Hanchen shift of a light beam via a coherent control field, which is injected into a cavity configuration containing the two-level atomic medium. It is...

Single-atom as a macroscopic entanglement source (2006)

Zhou, Ling, Xiong, Han, Zubairy, M. Suhail

We discuss the generation of a macroscopic entangled state in a single atom cavity-QED system. The three-level atom in a cascade configuration interacts dispersively with two classical coherent...

Entanglement conditions for two-mode states: Applications (2006)

Hillery, Mark, Zubairy, M. Suhail

We examine the implications of several recently derived conditions [Hillery and Zubairy, Phys. Rev. Lett. 96, 050503 (2006)] for determining when a two-mode state is entangled. We first find examples...

Phase control of electromagnetically induced transparency and its applications to tunable group velocity and atom localization (2006)

Kapale, Kishore T., Sahraib, Mostafa, Tajalib, Habib, Zubairy, M. Suhail

We show that, by simple modifications of the usual three-level lambda-type scheme used in electromagnetically induced transparency (EIT) schemes, phase dependence in the response of the atomic medium...

Distilling two-atom distance information from intensity-intensity correlation functions (2006)

Chang, Jun-Tao, Evers, Jörg, Zubairy, M. Suhail

The intensity-intensity correlation function of the resonance fluorescence light of two two-level atoms driven by a resonant standing-wave laser field is examined. Our aim is to gain information on...

Subwavelength atom localization via amplitude and phase control of the absorption spectrum-II (2005)

Kapale, Kishore T., Zubairy, M. Suhail

Interaction of the internal states of an atom with spatially dependent standing-wave cavity field can impart position information of the atom passing through it leading to subwavelength atom...

Measurement of the separation between atoms beyond diffraction limit (2005)

Chang, Jun-Tao, Evers, Joerg, Scully, Marlan O., Zubairy, M. Suhail

Precision measurement of small separations between two atoms or molecules has been of interest since the early days of science. Here, we discuss a scheme which yields spatial information on a system...

Entanglement conditions for two-mode states (2005)

Hillery, Mark, Zubairy, M. Suhail

We provide a class of inequalities whose violation shows the presence of entanglement in two-mode systems. We initially consider observables that are quadratic in the mode creation and annihilation...

Spectral Narrowing via Quantum Coherence (2005)

Mikhailov, Eugeniy E., Sautenkov, Vladimir A., Rostovtsev, Yuri V., Zhang, Aihua, Zubairy, M. Suhail, Scully, Marlan O., ...

We have studied the transmission of an optically thick Rb vapor that is illuminated by monochromatic and noise broaden laser fields in Lambda configuration. The spectral width of the beat signal...

Subwavelength atom localization via amplitude and phase control of the absorption spectrum (2005)

Sahrai, Mostafa, Tajalli, Habib, Kapale, Kishore T., Zubairy, M. Suhail

We propose a scheme for subwavelength localization of an atom conditioned upon the absorption of a weak probe field at a particular frequency. Manipulating atom-field interaction on a certain...

Phase control of electromagnetically induced transparency and its applications to tunable group velocity and atom localization (2005)

Kapale, Kishore T., Sahrai, Mostafa, Tajali, Habib, Zubairy, M. Suhail

We show that, by simple modifications of the usual three-level $\Lambda$-type scheme used for obtaining electromagnetically induced transparency (EIT), phase dependence in the response of the atomic...

Quantum electrodynamics of accelerated atoms in free space and in confined cavities (2004)

Belyanin, Alexey, Capasso, Federico, Fry, Edward, Fulling, Stephen, Kocharovsky, Vitaly, Zubairy, M. Suhail, ...

We consider a gedanken experiment with a beam of atoms in their ground state that are accelerated through a single-mode microwave cavity. We show that taking into account of the ''counter-rotating''...

Propagation of Fronts and Information in Dispersive Media (2003)

Zhu, Shi-Yao, Yang, Ya-Ping, Wang, Li-Gang, Liu, Nian-Hua, Zubairy, M. Suhail

We present a general proof based on Kramers-Kronig relations that, in a normal or anomalous dispersive linear medium, any (discontinuitynonanalytic disturbance) in an electromagnetic pulse can not...