518 citations
- Indian Institute of Technology GandhinagarIN282 papers
- Tata Institute of Fundamental ResearchIN161 papers
- Centre National de la Recherche ScientifiqueFR100 papers
- Indian Institute of AstrophysicsIN92 papers
- Chinese Academy of SciencesCN71 papers
- Aryabhatta Research Institute of Observational SciencesIN66 papers
- Inter-University Centre for Astronomy and AstrophysicsIN62 papers
- Harish-Chandra Research InstituteIN54 papers
- Indian Institute of Science BangaloreIN54 papers
- Indian Institute of Technology BombayIN54 papers
- Udaipur Solar ObservatoryIN53 papers
- California Institute of TechnologyUS46 papers
9 papers · 2 filters
Giant Radiative Interactions Among Distant Atoms
G. S. Agarwal, S. Dutta Gupta
We examine the feasibility of enhancing the fundamental radiative interactions between distant atoms. We present general arguments for producing enhancement. In particular, we show…
Vacuum Induced Coherences in Radiatively Coupled Multilevel Systems
G. S. Agarwal, Anil K. Patnaik
We show that radiative coupling between two multilevel atoms having near-degenerate states can produce new interference effects in spontaneous emission. We explicitly demonstrate t…
Quantum Coherence in a Single Ion due to strong Excitation of a metastable Transition
J. von Zanthier, C. Skornia, G. S. Agarwal +1
We consider pump-probe spectroscopy of a single ion with a highly metastable (probe) clock transition which is monitored by using the quantum jump technique. For a weak clock laser…
Improving the Fidelity of Quantum Cloning by Fast Cycling away the Unwanted Transition
Shubhrangshu Dasgupta, G. S. Agarwal
The fidelity of quantum cloning is very often limited by the accompanying unwanted transitions. We show how the fidelity can be improved by using a coherent field to cycle away the…
Off Resonant Pumping for Transition from Continuous to Discrete Spectrum and Quantum Revivals in Systems in Coherent States
G. S. Agarwal, J. Banerji
We show that in parametrically driven systems and, more generally, in systems in coherent states, off-resonant pumping can cause a transition from a continuum energy spectrum of th…
Reconstruction of SU(1,1) States
G. S. Agarwal, J. Banerji
We show how group symmetries can be used to reconstruct quantum states. In our scheme for SU(1,1) states, the input field passes through a non-degenerate parametric amplifier and o…