Rydberg interaction induced enhanced excitation in thermal atomic vapor
| Autor: | A. K. Mohapatra, Arup Bhowmick, Dushmanta Kara |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Population
lcsh:Medicine FOS: Physical sciences 01 natural sciences Article Optical heterodyne detection Quantum logic 010305 fluids & plasmas symbols.namesake 0103 physical sciences Thermal Principal quantum number Physics::Atomic Physics lcsh:Science 010306 general physics education Physics education.field_of_study Quantum Physics Multidisciplinary lcsh:R Rydberg formula symbols lcsh:Q Atomic physics Rydberg state Quantum Physics (quant-ph) Excitation |
| Zdroj: | Scientific Reports, Vol 8, Iss 1, Pp 1-9 (2018) Scientific Reports |
| Popis: | We present the experimental demonstration of interaction induced enhancement in Rydberg excitation or Rydberg anti-blockade in thermal atomic vapor. We have used optical heterodyne detection technique to measure Rydberg population due to two-photon excitation to the Rydberg state. The anti-blockade peak which doesn’t satisfy the two-photon resonant condition is observed along with the usual two-photon resonant peak which can’t be explained using the model with non-interacting three-level atomic system. A model involving two interacting atoms is formulated for thermal atomic vapor using the dressed states of three-level atomic system to explain the experimental observations. A non-linear dependence of vapor density is observed for the anti-blockade peak which also increases with increase in principal quantum number of the Rydberg state. A good agreement is found between the experimental observations and the proposed interacting model. Our result implies possible applications towards quantum logic gates using Rydberg anti-blockade in thermal atomic vapor. |
| Databáze: | OpenAIRE |
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