Coupling bosonic modes with a qubit: entanglement dynamics at zero and finite-temperatures
arXiv:quant-ph/0511114 · doi:10.1016/j.physleta.2006.07.067
Abstract
We consider a system of two iso-spectral bosonic modes coupled with a single two-level systems i.e., a qubit. The dynamics is described by a mode-symmetric two-modes Jaynes-Cummings. The entanglement, induced between the two bosonic modes, is analyzed and quantified by negativity. We computed the time evolution of negativity starting from an initial thermal state of the bosonic sector for both zero and finite temperature. We also studied the entangling power of the interaction as a function of mode-qubit detuning and its resilience against temperature increase. Finally a two-qubit gates based on bosonic virtual subsystem is discussed.
8 pages, 7 figures
References in corpus (15)
- Quantum Computation with Quantum Dots
- Separability Criterion for Density Matrices
- A computable measure of entanglement
- Encoding a qubit in an oscillator
- Separability criterion and inseparable mixed states with positive partial transposition
- Extremal entanglement and mixedness in continuous variable systems
- Quantum-Information Processing with Semiconductor Macroatoms
- On the Entangling Power of Quantum Evolutions
- Quantum tensor product structures are observable-induced
- Virtual Quantum Subsystems
- The entangling power of passive optical elements
- Vibrational coherent quantum computation
- Generation of Entangled N-Photon States in a Two-Mode Jaynes-Cummings Model
- Mode Entanglement and Entangling power in Bosonic Graphs
- Mode transformations and entanglement relativity in bipartite gaussian states