학술논문

Observation of the entanglement sudden death
Document Type
Conference
Source
2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on. :1-2 May, 2008
Subject
Photonics and Electrooptics
Components, Circuits, Devices and Systems
Quantum entanglement
Quantum computing
Quantum mechanics
Polarization
Reservoirs
Tomography
Performance evaluation
Optical interferometry
Communication channels
Degradation
(270.0270) General
Language
Abstract
We demonstrate, using an all-optical setup, the difference between local and global dynamics of entangled quantum systems coupled to independent environments. Even when the decay of each system is asymptotic, quantum entanglement may suddenly disappear. We also demonstrate experimentally that measurements performed in the environment affects the local evolution.