Some exact results on continuous-time quantum walks

Statistical Physics and Complexity Group meeting

Some exact results on continuous-time quantum walks

  • Event time: 11:30am until 12:30pm
  • Event date: 3rd June 2020
  • Speaker: (CEA Saclay)
  • Location: Online - see email.

Event details

 Quantum analogs of classical random walks have been defined in quantum information theory  as a useful concept to implement algorithms.  Due to  interference effects, statistical properties of quantum walks can drastically differ from their classical counterparts, leading to much faster computations.
 
 In this talk, we  shall discuss  various  statistical properties of continuous-time quantum walks on a  lattice, such as:  survival properties of quantum  particles in the presence of traps, the growth of a quantum  population  in the presence of a  source, and quantum return probabilities (Loschmidt echoes).