Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Fabian Hassler"'
Publikováno v:
SciPost Physics, Vol 14, Iss 6, p 156 (2023)
As a function of the driving strength, a degenerate parametric oscillator exhibits an instability at which spontaneous oscillations occur. Close to threshold, both the nonlinearity as well as fluctuations are vital to the accurate description of the
Externí odkaz:
https://doaj.org/article/f5dc698d4c3b4ec9a7052caff801f40d
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033128 (2019)
In circuit QED, a Rabi model can be derived by truncating the Hilbert space of an anharmonic qubit coupled to a resonator. This truncation breaks the gauge invariance present in the full Hamiltonian. Here we derive a simple criterion for an optimal g
Externí odkaz:
https://doaj.org/article/6037c6b881fd42299cb91101a14422da
Autor:
Bruno Küng, Simon Gustavsson, Theodore Choi, Ivan Shorubalko, Oliver Pfäffli, Fabian Hassler, Gianni Blatter, Matthias Reinwald, Werner Wegscheider, Silke Schön, Thomas Ihn, Klaus Ensslin
Publikováno v:
Entropy, Vol 12, Iss 7, Pp 1721-1732 (2010)
Charge sensing with quantum point-contacts (QPCs) is a technique widely used in semiconductor quantum-dot research. Understanding the physics of this measurement process, as well as finding ways of suppressing unwanted measurement back-action, are th
Externí odkaz:
https://doaj.org/article/05e2ed559a5843cb90a80d16ee89c7a0
Autor:
Christoph Ohm, Fabian Hassler
Publikováno v:
New Journal of Physics, Vol 19, Iss 5, p 053018 (2017)
On-demand creation of entanglement between distant qubits is a necessary ingredient for distributed quantum computation. We propose an entanglement scheme that allows for single-shot deterministic entanglement creation by detecting a single photon pa
Externí odkaz:
https://doaj.org/article/207d52d474a0456f8e3508df8ec5f754
Publikováno v:
New Journal of Physics, Vol 17, Iss 6, p 065012 (2015)
The fluxonium qubit has arisen as one of the most promising candidate devices for implementing quantum information in superconducting devices, since it is both insensitive to charge noise (like flux qubits) and insensitive to flux noise (like charge
Externí odkaz:
https://doaj.org/article/61219d823a7c4ce28e461e705a4b1e1f
Publikováno v:
New Journal of Physics, Vol 16, Iss 4, p 045020 (2014)
We study a flux qubit made of a superconducting loop interrupted by three Josephson junctions, which is subject to a temperature gradient. We show that the heat current induced by the temperature gradient, being sensitive to the superconducting phase
Externí odkaz:
https://doaj.org/article/9ec63b6220014a32994971f6ab76572c
Autor:
Christoph Ohm, Fabian Hassler
Publikováno v:
New Journal of Physics, Vol 16, Iss 1, p 015009 (2014)
We consider a voltage-biased Josephson junction between two nanowires hosting Majorana zero modes which occur as topological protected zero-energy excitations at the junction. We show that two Majorana fermions localized at the junction, despite bein
Externí odkaz:
https://doaj.org/article/e55a75177a22427eaf995259a43470d1
Autor:
Fabian Hassler, Dirk Schuricht
Publikováno v:
New Journal of Physics, Vol 14, Iss 12, p 125018 (2012)
An array of superconducting islands with semiconducting nanowires in the right regime provides a macroscopic implementation of Kitaev's toy model for Majorana wires. We show that a capacitive coupling between adjacent islands leads to an effective in
Externí odkaz:
https://doaj.org/article/a1ebbdb78072429ab43e6ad37c4f621c
Publikováno v:
Physical Review B. 107
The Nielsen-Ninomiya theorem, dubbed `fermion-doubling', poses a problem for the naive discretization of a single (massless) Dirac cone on a two-dimensional surface. The inevitable appearance of an additional, unphysical fermionic mode can, for examp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::364344964795ec720c712d3c278eb158
https://doi.org/10.1103/physrevb.107.195409
https://doi.org/10.1103/physrevb.107.195409
Publikováno v:
Physical Review Letters. 129
Physically, one tends to think of non-Hermitian systems in terms of gain and loss: the decay or amplification of a mode is given by the imaginary part of its energy. Here, we introduce an alternative avenue to the realm of non-Hermitian physics, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9ae5fad1a0143ef22c53cb9a9139af0
https://doi.org/10.1103/physrevlett.129.086601
https://doi.org/10.1103/physrevlett.129.086601