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Optoelectronic Control of Atomic Bistability with Graphene
Mikkel Have Eriksen1, Jakob E Olsen2, Christian Wolff1
1Center for Nano Optics, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.
Physical Review Letters
|January 6, 2023
Summary
We demonstrate active control of optical bistability in atoms near graphene. This interaction allows tuning light properties and controlling quantum systems, paving the way for advancements in atomic physics.
Area of Science:
- Quantum optics
- Atomic physics
- Condensed matter physics
Background:
- Optical bistability is a key phenomenon in nonlinear optics.
- Graphene's tunable electronic properties offer novel ways to control light-matter interactions.
Purpose of the Study:
- To explore the emergence and active control of optical bistability in a two-level atom near a graphene sheet.
- To investigate how graphene's tunable properties influence atomic light emission.
Main Methods:
- Theoretical modeling of a two-level atom interacting with electromagnetic vacuum modes near graphene.
- Incorporation of atomic self-interaction and graphene's tunable interband transition.
Main Results:
- Demonstration of electro-optical bistability and hysteresis in atomic light intensity, spectrum, and quantum statistics.
- Observation of critical slow-down in the atom's approach to a steady state.
Conclusions:
- The atom-graphene system provides a platform for active control of driven atomic systems.
- This interaction is promising for applications in coherent quantum control and atomic physics.
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