Quantum state transfer via temporal kicking of information
arXiv:0911.5160 · doi:10.1103/PhysRevA.81.022319
Abstract
We propose a strategy for perfect state transfer in spin chains based on the use of an unmodulated coupling Hamiltonian whose coefficients are explicitly time dependent. We show that, if specific and non-demanding conditions are satisfied by the temporal behavior of the coupling strengths, our model allows perfect state transfer. The paradigma put forward by our proposal holds the promises to set an alternative standard to the use of clever encoding and coupling-strength engineering for perfect state transfer.
7 pages, 7 figures, RevTeX4
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- Creation and manipulation of entanglement in spin chains far from equilibrium
- Optimized quantum state transfer through an XY spin chain
- Control of dephasing in spin qubits during coherent transport in silicon
- Enhancement of nonclassical properties of two qubits via deformed operators
- Exact generation of quantum states by the dynamics of spin chains
- Noise effects in perfect transmission of quantum states
- Transfer of quantum-enhanced information through a many-body system