128 citations · 397 across the 7 of their papers we have counts for
8 papers · 1 filter
Non-Unitary Quantum Walks on Hyper-Cycles
Dmitry Solenov, Leonid Fedichkin
We present analytical treatment of quantum walks on multidimensional hyper-cycle graphs. We derive the analytical expression of the probability distribution for strong and weak dec…
Mixing and Decoherence in Continuous-Time Quantum Walks on Cycles
Leonid Fedichkin, Dmitry Solenov, Christino Tamon
We prove analytical results showing that decoherence can be useful for mixing time in a continuous-time quantum walk on finite cycles. This complements the numerical observations b…
Continuous-time Quantum Walks on a Cycle Graph
Dmitry Solenov, Leonid Fedichkin
We present analytical treatment of quantum walks on a cycle graph. The investigation is based on a realistic physical model of the graph in which decoherence is induced by continuo…
Collective Decoherence of Nuclear Spin Clusters
A. Fedorov, L. Fedichkin
The problem of dipole-dipole decoherence of nuclear spins is considered for strongly entangled spin cluster. Our results show that its dynamics can be described as the decoherence…
Decoherence Rate of Semiconductor Charge Qubit Coupled to Acoustic Phonon Reservoir
L. Fedichkin, A. Fedorov
We analyze decoherence of an electron in a double-dot due to the interaction with acoustic phonons. For large tunneling rates between the quantum dots, the main contribution to dec…
Quantum Computer with Fixed Interaction is Universal
Yuri Ozhigov, Leonid Fedichkin
It is proved that a quantum computer with fixed and permanent interaction of diagonal type between qubits proposed in the work quant-ph/0201132 is universal. Such computer is contr…