335 citations · 1.4k across the 31 of their papers we have counts for
31 papers
Relative homotopy approach to topological phases in quantum walks
Andrzej Grudka, Marcin Karczewski, Pawel Kurzynski +2
Discrete-time quantum walks (DTQWs) provide a convenient platform for a realisation of many topological phases in noninteracting systems. They often offer more possibilities than s…
Complementarity in quantum walks
Andrzej Grudka, Pawel Kurzynski, Tomasz P. Polak +3
We study discrete-time quantum walks on -cycles with a position and coin-dependent phase-shift. Such a model simulates a dynamics of a quantum particle moving on a ring with an…
Galilean invariance without superluminal particles
Andrzej Grudka, Antoni Wojcik
Recently Dragan and Ekert [New. J. Phys 22, 033038, 2020] presented arguments that probabilistic dynamics inherent in the realm of quantum physics is related to the propagation of…
On Quantum Semipermeable Barriers: Investigating Maxwell's Demon Toolbox
Andrzej Grudka, Pawel Kurzynski, Antoni Wojcik
We study quantum Maxwell's demon in a discrete space-time setup. We consider a collection of particles hopping on a one-dimensional chain and a semipermeable barrier that allows th…
Attractors and asymptotic dynamics of open discrete-time quantum walks on cycles
Adam S. Sajna, Tomasz P. Polak, Antoni Wojcik +1
Open quantum walks often lead to a classical asymptotic behavior. Here, we look for a simple open quantum walk whose asymptotic behavior can be non-classical. We consider a discret…
From contextuality of a single photon to realism of an electromagnetic wave
Marcin Markiewicz, Dagomir Kaszlikowski, Pawel Kurzynski +1
Violations of Bell inequalities have been an incontestable indicator of non-classicality since the seminal paper by John Bell. However, recent claims of Bell inequalities violation…