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Updated: Jun 26, 2026
11:21
Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Quantum critical behavior in strongly interacting Rydberg gases.
Hendrik Weimer1, Robert Löw, Tilman Pfau
1Institute of Theoretical Physics III, Universität Stuttgart, 70550 Stuttgart, Germany. hweimer@itp3.uni-stuttgart.de
Physical Review Letters
|December 31, 2008
Summary
We study how atoms in Rydberg states show quantum phenomena. The system exhibits a quantum phase transition, and blockade effects follow a universal scaling law.
Area of Science:
- Atomic physics
- Quantum many-body phenomena
- Quantum phase transitions
Background:
- Studying strongly interacting Rydberg states is crucial for understanding quantum many-body systems.
- Driven atomic ensembles offer a platform to explore quantum phase transitions.
- Rydberg blockade is a key phenomenon in these systems.
Purpose of the Study:
- To investigate correlated many-body phenomena in resonantly driven Rydberg atoms.
- To analyze the quantum phase transition in the driven system's ground state.
- To characterize the scaling law of Rydberg blockade.
Main Methods:
- Resonant driving of atomic ensembles into Rydberg states.
- Derivation of the critical theory for the quantum phase transition.
- Analysis of the saturated regime and blockade phenomena.
Main Results:
- The driven Rydberg system exhibits a second-order quantum phase transition.
- The derived critical theory accurately describes the saturated regime.
- Rydberg blockade shows an algebraic scaling law with a universal exponent.
Conclusions:
- Correlated many-body phenomena emerge in driven Rydberg systems.
- Quantum phase transitions are a fundamental aspect of these driven systems.
- The observed scaling law for blockade provides universal insights into Rydberg physics.
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