133 citations · 467 across the 11 of their papers we have counts for
11 papers
Decoherent quantum walks driven by a generic coin operation
G. Abal, R. Donangelo, F. Severo +1
We consider the effect of different unitary noise mechanisms on the evolution of a quantum walk (QW) on a linear chain with a generic coin operation: (i) bit-flip channel noise, re…
Sub-ballistic behavior in quantum systems with Lévy noise
A. Romanelli, R. Siri, V. Micenmacher
We investigate the quantum walk and the quantum kicked rotor in resonance subjected to noise with a Lévy waiting time distribution. We find that both systems have a sub-ballistic w…
Sub-ballistic behaviour of the Quantum Kicked Rotor
A. Romanelli, A. Auyuanet, R. Siri +1
We study the resonances of the quantum kicked rotor subjected to an excitation that follows an aperiodic Fibonacci prescription. In such a case the secondary resonances show a sub-…
Effects of non-local initial conditions in the Quantum Walk on the line
G. Abal, R. Donangelo, A. Romanelli +1
We report an enhancement of the decay rate of the survival probability when non-local initial conditions in position space are considered in the Quantum Walk on the line. It is sho…
Quantum walk on the line: entanglement and non-local initial conditions
G. Abal, R. Siri, A. Romanelli +1
The conditional shift in the evolution operator of a quantum walk generates entanglement between the coin and position degrees of freedom. This entanglement can be quantified by th…
Generalized Quantum Walk in Momentum Space
A. Romanelli, A. Auyuanet, R. Siri +2
We consider a new model of quantum walk on a one-dimensional momentum space that includes both discrete jumps and continuous drift. Its time evolution has two stages; a Markov diff…