13 citations · 47 across the 12 of their papers we have counts for
12 papers
Emergence of multiple zero modes bound to vortices in extended topological Josephson junctions
Adrian Reich, Kiryl Piasotski, Eytan Grosfeld +1
We study planar Josephson junctions formed on the surface of a three-dimensional topological insulator (Fu-Kane proposal). We examine the experimentally relevant parameter regimes…
Topological Josephson vortices at finite voltage bias
Kiryl Piasotski, Adrian Reich, Alexander Shnirman
We study the effects of finite voltage bias on Caroli-de Gennes-Matricon (CdGM) states in topological Josephson junctions with a vortex lattice. The voltage drives vortices into st…
Theory of three-terminal Andreev spin qubits
Kiryl Piasotski, Aleksandr Svetogorov, Wolfgang Belzig +1
In this paper, we introduce a concise theoretical framework for the equilibrium three-terminal Josephson effect in spin-orbit-interacting systems, inspired by recent experiments on…
Current Flow in Topological Insulator Josephson Junctions due to Imperfections
Kiryl Piasotski, Omri Lesser, Adrian Reich +5
Recent experiments on planar superconductor-topological insulator-superconductor (S-TI-S) junctions, e.g., in Corbino geometry, have reported low-temperature nonzero Josephson curr…
Green's functions of quasi-one-dimensional layered systems and their application to Josephson junctions
Kiryl Piasotski, Mikhail Pletyukhov, Alexander Shnirman
We develop Green's function formalism to describe continuous multi-layered quasi-one-dimensional setups described by piece-wise constant single-particle Hamiltonians. The Hamiltoni…
Topological charge quantization on localized imperfections in crystalline insulators and the nearsightedness principle of Kohn
Kiryl Piasotski
We study the quantization of the excess charge on localized (ultra-screened) impurities in -dimensional crystalline insulating systems. Solving Dyson's equation, we demonstr…
Universal properties of boundary and interface charges in multichannel one-dimensional continuum models
Kiryl Piasotski, Niclas Müller, Dante M. Kennes +2
We generalize our recent results for the boundary and interface charges in one-dimensional single-channel continuum [Phys. Rev. B 104, 155409 (2021)] and multichannel tight-binding…
Universal properties of boundary and interface charges in multichannel one-dimensional models without symmetry constraints
Niclas Müller, Kiryl Piasotski, Dante M. Kennes +2
The boundary charge that accumulates at the edge of a one-dimensional single-channel insulator is known to possess the universal property, that its change under a lattice shift tow…
Universality of Abelian and non-Abelian Wannier functions in one dimension
Kiryl Piasotski, Mikhail Pletyukhov, Clara S. Weber +3
Within a Dirac model in dimensions, a prototypical model to describe low-energy physics for a wide class of lattice models, we propose a field-theoretical version for the rep…
Diagrammatic Approach to Scattering of Multi-Photon States in Waveguide QED
Kiryl Piasotski, Mikhail Pletyukhov
We give an exposure to diagrammatic techniques in waveguide QED systems. A particular emphasis is placed on the systems with delayed coherent quantum feedback. Specifically, we sho…
Universality of Boundary Charge Fluctuations
Clara S. Weber, Kiryl Piasotski, Mikhail Pletyukhov +4
We establish the quantum fluctuations of the charge accumulated at the boundary of an insulator as an integral tool to characterize phase transitions where a direct…
Rational boundary charge in one-dimensional systems with interaction and disorder
Mikhail Pletyukhov, Dante M. Kennes, Kiryl Piasotski +3
We study the boundary charge of generic semi-infinite one-dimensional insulators with translational invariance and show that non-local symmetries (i.e., including translation…