activity
20122018
most citedLimit distributions of three-state quantum walks: the role of coin eigenstates

42 citations · 89 across the 5 of their papers we have counts for

collaborators

6 papers

quant-ph2018★ 7 cited

Light, the universe, and everything -- 12 Herculean tasks for quantum cowboys and black diamond skiers

Girish Agarwal, Roland Allen, Iva Bezdekova +29

The Winter Colloquium on the Physics of Quantum Electronics (PQE) has been a seminal force in quantum optics and related areas since 1971. It is rather mindboggling to recognize ho…

quant-ph2017

Limit density of 2D quantum walk: zeroes of the weight function

Martin Stefanak, Iva Bezdekova, Igor Jex

Properties of the probability distribution generated by a discrete-time quantum walk, such as the number of peaks it contains, depend strongly on the choice of the initial conditio…

quant-ph2015★ 4 cited

Suitable bases for quantum walks with Wigner coins

Iva Bezdekova, Martin Stefanak, Igor Jex

The analysis of a physical problem simplifies considerably when one uses a suitable coordinate system. We apply this approach to the discrete-time quantum walks with coins given by…

quant-ph2014★ 42 cited

Limit distributions of three-state quantum walks: the role of coin eigenstates

Martin Stefanak, Iva Bezdekova, Igor Jex

We analyze two families of three-state quantum walks which show the localization effect. We focus on the role of the initial coin state and its coherence in controlling the propert…

quant-ph2013★ 2 cited

Stability of point spectrum for three-state quantum walks on a line

M. Stefanak, I. Bezdekova, I. Jex +1

Evolution operators of certain quantum walks possess, apart from the continuous part, also point spectrum. The existence of eigenvalues and the corresponding stationary states lead…

quant-ph2012★ 34 cited

Continuous deformations of the Grover walk preserving localization

Martin Stefanak, Iva Bezdekova, Igor Jex

The three-state Grover walk on a line exhibits the localization effect characterized by a non-vanishing probability of the particle to stay at the origin. We present two continuous…