Quantum Dialogue Based on Hypertanglement Against Collective Noise
Abstract
The major problem faced by photons propagating through a physical channel is that of collective noise. This collective noise has the ability to reduce the number of quantum bits that are transmitted, thereby reduces the message fidelity. The traditional method of noise immunity is the use of entanglement purification, which consumes a lot of quantum resources in accomplishing the joint probability of noise immunity but does not guarantee accurate quantum dialog. In this paper, we investigate a new approach to quantum dialogue in which quantum information can be faithfully transmitted via a noisy channel. we constructs corresponding Decoherence Free Subspace(DFS), the quantum state after the change is in the maximally entangled state, so as to realize the fidelity of quantum dialogue model that can ensure the accuracy and noise resistance, and secret information exchange.
- Publication:
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International Journal of Theoretical Physics
- Pub Date:
- August 2016
- DOI:
- 10.1007/s10773-016-2989-8
- Bibcode:
- 2016IJTP...55.3607W
- Keywords:
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- Quantum dialogue;
- Decoherence free subspace;
- Immune model;
- Super entanglement state;
- Collective rotation noise;
- Collective dephasing noise