Entropy decrease in Quantum Zeno Effect
Abstract
If a measurement process is regarded as an irreversible process, then by Second law of thermodynamics the entropy should increase after any measurement process. By the same spirit a quantum system undergoing repeated measurement should show strong irreversibility leading to entropy production. On the contrary we show that in quantum Zeno effect setting the entropy of a quantum system decreases and goes to zero after a large number of measurements. We discuss the entropy change under continuous measurement model and show that entropy can decrease if we use a more accurate measuring apparatus.
- Publication:
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arXiv e-prints
- Pub Date:
- June 2000
- DOI:
- 10.48550/arXiv.quant-ph/0006089
- arXiv:
- arXiv:quant-ph/0006089
- Bibcode:
- 2000quant.ph..6089P
- Keywords:
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- Quantum Physics
- E-Print:
- Latex file, 6 pages, no figures