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Updated: Jun 8, 2026

Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Quantum control and entanglement in a chemical compass
Jianming Cai1, Gian Giacomo Guerreschi, Hans J Briegel
1Institut für Quantenoptik und Quanteninformation der Osterreichischen Akademie der Wissenschaften, Innsbruck, Austria.
Quantum control enhances or reduces the chemical compass performance, crucial for animal navigation and spin chemistry. This study explores radical-pair entanglement
Area of Science:
- Quantum physics
- Biophysics
- Chemistry
Background:
- The radical-pair mechanism explains animal magnetoreception and is vital in spin chemistry.
- Birds and other animals use magnetoreception for navigation.
Purpose of the Study:
- To investigate how quantum control influences the radical-pair mechanism.
- To explore the role of radical-pair entanglement in magnetic-field sensitivity.
- To demonstrate the application of quantum technologies in biological systems.
Main Methods:
- Utilizing quantum control techniques to manipulate radical-pair dynamics.
- Analyzing the relationship between radical-pair entanglement and magnetic sensitivity.
- Simulating and theoretically modeling the chemical compass.
Main Results:
- Quantum control can be used to either enhance or suppress the performance of the radical-pair chemical compass.
- Radical-pair entanglement is intrinsically linked to the compass's sensitivity to magnetic fields.
- The study provides a novel method for investigating the radical-pair mechanism.
Conclusions:
- Quantum control offers a powerful tool to study and manipulate the radical-pair mechanism.
- Entanglement plays a key role in the magnetic-field sensitivity of biological compasses.
- Advanced quantum technologies can be applied to probe and control biological functions.
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