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Environment induced entanglement in Markovian dissipative dynamics.
Fabio Benatti1, Roberto Floreanini, Marco Piani
1Dipartimento di Fisica Teorica, Università di Trieste, Strada Costiera 11, 34014 Trieste, Italy.
Physical Review Letters
|August 26, 2003
Summary
Two noninteracting two-level systems can become entangled through shared environmental interactions. This quantum entanglement arises from their common bath and Markovian dynamics, demonstrating a novel pathway to quantum correlations.
Area of Science:
- Quantum Physics
- Quantum Information Science
- Open Quantum Systems
Background:
- Two-level systems are fundamental in quantum mechanics.
- Quantum entanglement is a key resource for quantum technologies.
- Interactions with an environment (bath) can affect quantum states.
Purpose of the Study:
- To investigate entanglement generation between noninteracting quantum systems.
- To explore the role of a common bath in quantum dynamics.
- To analyze the conditions under which entanglement emerges from Markovian dynamics.
Main Methods:
- Theoretical modeling of two noninteracting two-level systems.
- Analysis of system evolution under a common bath environment.
- Application of Markovian, completely positive reduced dynamics.
Main Results:
- Demonstrated mutual entanglement between two noninteracting two-level systems.
- Showed that a common bath can induce quantum correlations.
- Confirmed entanglement generation via specific quantum dynamics.
Conclusions:
- Entanglement can be generated in seemingly isolated systems through shared environmental coupling.
- Common bath dynamics offer a mechanism for creating quantum correlations.
- This finding has implications for quantum information processing and understanding decoherence.