Finite-time disentanglement via spontaneous emission.
By Ting Yu, Joseph H. Eberly. Physical Review Letters, 2004
1,424 citations recorded by the source corpus.
We show that under the influence of pure vacuum noise two entangled qubits become completely disentangled in a finite-time, and in a specific example we find the time to be given by ln((2+sqrt[2] / 2) times the usual spontaneous lifetime.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/0e953cb6cd5110228c5585f7a77490a208f7ed3f
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Dynamics of non-Markovian open quantum systems (2015, background): “Regarding the dynamics from an initially entangled state, the entanglement between a pair of two-level systems has been shown to vanish at short times compared 18 to the usual spontaneous lifetime (Yu and Eberly, 2004).”
- Protecting entanglement from decoherence using weak measurement and quantum measurement reversal (2011, background): “For a multipartite quantum system, decoherence leads to degradation of entanglement and, in certain cases, entanglement sudden deat”
- Photon wave functions, wave-packet quantization of light, and coherence theory (2007, background): “The calculation also predicted the sudden disappearance (“death”) of entanglement, which was pointed out in the context of two coupled qubits or two atoms in [78, 79].”
- Strong Field Interactions between a Nanomagnet and a Photonic Cavity (2009, background): “For instance, Scully and Lamb [78] described a system of N molecules by a 2 × 2 matrix, instead of by one of dimension 2 , and Yu and Eberly [79] showed the entanglement between the two particles coupled with two independent environments became completely vanishing in a finite time along the course ”
- Measures and dynamics of entangled states (2005, background): “In fact, some initial mixed states may reach separability on finite time scales also in the zero temperature case [85].”