14 citations · 14 across the 2 of their papers we have counts for
5 papers
Voltage staircase in a current-biased quantum-dot Josephson junction
D. O. Oriekhov, Y. Cheipesh, C. W. J. Beenakker
We calculate the current-voltage (I-V) characteristic of a Josephson junction containing a resonant level in the weakly coupled regime (resonance width small compared to the superc…
Entanglement correction due to local interactions in many-body systems
Yevheniia Cheipesh, Lorenzo Cevolani, Stefan Kehrein
The correction to the area law for the bipartite min-entanglement entropy of weakly and locally interacting fermions is calculated based on a perturbative extension of the flow equ…
Dynamical signatures of ground-state degeneracy to discriminate against Andreev levels in a Majorana fusion experiment
A. Grabsch, Y. Cheipesh, C. W. J. Beenakker
Detection of the fusion rule of Majorana zero-modes is a near-term milestone on the road to topological quantum computation. An obstacle is that the non-deterministic fusion outcom…
Pfaffian formula for fermion parity fluctuations in a superconductor and application to Majorana fusion detection
A. Grabsch, Y. Cheipesh, C. W. J. Beenakker
Kitaev's Pfaffian formula equates the ground-state fermion parity of a closed system to the sign of the Pfaffian of the Hamiltonian in the Majorana basis. Using Klich's theory of f…
Exact description of the boundary theory of the Kitaev Toric Code with open boundary conditions
Yevheniia Cheipesh, Lorenzo Cevolani, Stefan Kehrein
In this work we consider the Kitaev Toric Code with specific open boundary conditions. Such a physical system has a highly degenerate ground state determined by the degrees of free…