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Shortening time scale to reduce thermal effects in quantum transistors
1Universidade Estadual Paulista (UNESP), Campus Experimental de Itapeva, Rua Geraldo Alckmin, 519, Vila N. Sra de Fátima, 18409-010, Itapeva, São Paulo, Brazil. mickel.ponte@unesp.br.
We developed a quantum transistor using coupled quantum oscillators as an optical switch for quantum information processing. This device controls quantum information flow and enhances qubit phase-shift gates, while mitigating thermal reservoir effects.
Area of Science:
- Quantum physics
- Quantum information processing
- Linear optics
Background:
- Quantum information processing relies on precise control of quantum states.
- Optical quantum switches are crucial for routing quantum information.
- Coupled quantum oscillators offer a potential platform for quantum devices.
Purpose of the Study:
- To present a novel quantum transistor model.
- To utilize coupled quantum oscillators as an optical quantum switch.
- To explore applications in quantum information processing and quantum gate implementation.
Main Methods:
- Analytical modeling of a network of N coupled quantum oscillators.
- Investigating the energy gap of oscillators as an adjustable potential barrier.
- Simulating the device's performance with thermal reservoir interactions.
Main Results:
- Demonstrated a quantum switch controlling quantum information flow.
- Showcased high-fidelity single qubit phase-shift quantum gate implementation.
- Identified an optimal data-bus size for minimizing thermal noise effects.
Conclusions:
- The proposed quantum transistor model is effective for quantum information processing.
- The data-bus oscillators play a key role in reducing thermal reservoir impact.
- The study provides a criterion for optimizing the data-bus size for performance.
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