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Experimental realization of programmable quantum gate array for directly probing commutation relations of Pauli
Xing-Can Yao1, Jaromír Fiurásek, He Lu
1Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
Physical Review Letters
|September 28, 2010
Summary
We built a programmable quantum processor using linear optics to test quantum commutation relations for photons. This advanced quantum processor accurately probes these fundamental quantum mechanics principles.
Area of Science:
- Quantum Information Science
- Quantum Optics
- Experimental Quantum Physics
Background:
- Quantum commutation relations are fundamental principles in quantum mechanics.
- Experimental verification of these relations is crucial for advancing quantum technologies.
- Linear-optical quantum computing offers a scalable platform for quantum information processing.
Purpose of the Study:
- To experimentally demonstrate a programmable quantum processor using linear optics.
- To probe quantum commutation and anticommutation relations for Pauli operators.
- To validate the performance of the implemented quantum processor.
Main Methods:
- Development of a linear-optical quantum processor integrating two single-qubit programmable gates.
- Utilizing polarization states of single photons as the quantum information carrier.
- Configuring a two-qubit program register to switch between probing commutation and anticommutation relations.
Main Results:
- Successful experimental demonstration of the programmable quantum processor.
- Direct probing of quantum commutation relations for Pauli operators on photon polarization states.
- Observation of excellent agreement between theoretical predictions and experimental outcomes.
Conclusions:
- The implemented linear-optical quantum processor reliably probes quantum commutation relations.
- The processor's high-quality performance validates its potential for advanced quantum experiments.
- This work contributes to the experimental foundation of quantum information science.
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