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Using time-reversal symmetry for sensitive incoherent matter-wave Sagnac interferometry
Y Japha1, O Arzouan, Y Avishai
1Department of Physics, Ben-Gurion University, Be'er-Sheva 84105, Israel.
Physical Review Letters
|October 13, 2007
Summary
We developed a theory for guided matter-wave transmission in Sagnac interferometers. These devices can operate with incoherent sources and offer high rotation sensitivity, similar to Aharonov-Bohm systems.
Area of Science:
- Quantum optics
- Mesoscopic physics
- Interferometry
Background:
- Sagnac interferometers are crucial for rotation sensing.
- Coherent matter-wave transmission exhibits phase rigidity.
- Aharonov-Bohm interferometers demonstrate unique electronic properties.
Purpose of the Study:
- To theorize guided matter-wave transmission through Sagnac interferometers.
- To explore the operational capabilities with incoherent sources.
- To predict performance metrics like rotation sensitivity.
Main Methods:
- Theoretical modeling of matter-wave propagation.
- Analysis of interferometer configurations with single input/output ports.
- Comparison with principles of phase rigidity in mesoscopic electronics.
Main Results:
- Identified phase rigidity in single-port Sagnac interferometers.
- Demonstrated feasibility of operation with incoherent matter-wave sources.
- Predicted high rotation sensitivity for high finesse configurations.
Conclusions:
- Sagnac interferometers can leverage phase rigidity for robust matter-wave transmission.
- The theoretical framework supports the use of less coherent sources.
- Optimized Sagnac interferometers hold promise for advanced rotation sensing applications.
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