341 citations · 2.9k across the 82 of their papers we have counts for
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Statistics of radiation at Josephson parametric resonance
Ciprian Padurariu, Fabian Hassler, Yuli V. Nazarov
Motivated by recent experiments, we study theoretically the full counting statistics of radiation emitted below the threshold of parametric resonance in a Josephson junction circui…
Coulomb-assisted braiding of Majorana fermions in a Josephson junction array
B. van Heck, A. R. Akhmerov, F. Hassler +2
We show how to exchange (braid) Majorana fermions in a network of superconducting nanowires by control over Coulomb interactions rather than tunneling. Even though Majorana fermion…
Topological quantum number and critical exponent from conductance fluctuations at the quantum Hall plateau transition
I. C. Fulga, F. Hassler, A. R. Akhmerov +1
The conductance of a two-dimensional electron gas at the transition from one quantum Hall plateau to the next has sample-specific fluctuations as a function of magnetic field and F…
Single-Particle Excitations Generated by Voltage Pulses
Fabian Hassler, Bruno Küng, Gordey B. Lesovik +1
We analyze properties of excitations due to voltage pulses applied to a 1D noninteracting electron gas, assuming that the integral of the voltage over time is equal to the unit of…
Coulomb stability of the 4π-periodic Josephson effect of Majorana fermions
B. van Heck, F. Hassler, A. R. Akhmerov +1
The Josephson energy of two superconducting islands containing Majorana fermions is a 4π-periodic function of the superconducting phase difference. If the islands have a small capa…
Scattering theory of topological insulators and superconductors
I. C. Fulga, F. Hassler, A. R. Akhmerov
The topological invariant of a topological insulator (or superconductor) is given by the number of symmetry-protected edge states present at the Fermi level. Despite this fact, est…
Top-transmon: hybrid superconducting qubit for parity-protected quantum computation
F. Hassler, A. R. Akhmerov, C. W. J. Beenakker
Qubits constructed from uncoupled Majorana fermions are protected from decoherence, but to perform a quantum computation this topological protection needs to be broken. Parity-prot…
Scattering formula for the topological quantum number of a disordered multi-mode wire
I. C. Fulga, F. Hassler, A. R. Akhmerov +1
The topological quantum number Q of a superconducting or chiral insulating wire counts the number of stable bound states at the end points. We determine Q from the matrix r of refl…
Probing Majorana edge states with a flux qubit
Chang-Yu Hou, Fabian Hassler, Anton R. Akhmerov +1
A pair of counter-propagating Majorana edge modes appears in chiral p-wave superconductors and in other superconducting systems belonging to the same universality class. These mode…