Zobrazeno 1 - 10
of 1 005
pro vyhledávání: '"Akhmerov, A."'
Superconductor-normal material-superconductor (SNS) junctions are being integrated into microwave circuits for fundamental and applied research goals. The short junction limit is a common simplifying assumption for experiments with SNS junctions, but
Externí odkaz:
http://arxiv.org/abs/2410.01913
Autor:
Waintal, Xavier, Wimmer, Michael, Akhmerov, Anton, Groth, Christoph, Nikolic, Branislav K., Istas, Mathieu, Rosdahl, Tómas Örn, Varjas, Daniel
This review is devoted to the different techniques that have been developed to compute the coherent transport properties of quantum nanoelectronic systems connected to electrodes. Beside a review of the different algorithms proposed in the literature
Externí odkaz:
http://arxiv.org/abs/2407.16257
A common technique in the study of complex quantum-mechanical systems is to reduce the number of degrees of freedom in the Hamiltonian by using quasi-degenerate perturbation theory. While the Schrieffer--Wolff transformation achieves this and constru
Externí odkaz:
http://arxiv.org/abs/2404.03728
Axial vectors, such as current or magnetization, are commonly used order parameters in time-reversal symmetry breaking systems. These vectors also break isotropy in three dimensional systems, lowering the spatial symmetry. We demonstrate that it is p
Externí odkaz:
http://arxiv.org/abs/2310.18400
Publikováno v:
Russian Journal of Education and Psychology, Vol 15, Iss 5SE, Pp 622-644 (2024)
Background. This is due to the fact that studies of biography and psychobiography allow us to reveal the features and patterns of the life path, in practice to provide psychological assistance to a person in search of himself, his life path, in optim
Externí odkaz:
https://doaj.org/article/b8148836da48419daf6e78069917c04d
Autor:
Vilkelis, Kostas, Manesco, Antonio, Luna, Juan Daniel Torres, Miles, Sebastian, Wimmer, Michael, Akhmerov, Anton
Publikováno v:
SciPost Phys. 16, 135 (2024)
We propose a practical implementation of a universal quantum computer that uses local fermionic modes (LFM) rather than qubits. The device layout consists of quantum dots tunnel coupled by a hybrid superconducting island and a tunable capacitive coup
Externí odkaz:
http://arxiv.org/abs/2309.00447
The non-Hermitian skin effect is a phenomenon in which an extensive number of states accumulates at the boundaries of a system. It has been associated to nontrivial topology, with nonzero bulk invariants predicting its appearance and its position in
Externí odkaz:
http://arxiv.org/abs/2308.00776
We present a systematic method to design arbitrary energy-phase relations using parallel arms of two series Josephson tunnel junctions each. Our approach employs Fourier engineering in the energy-phase relation of each arm and the position of the arm
Externí odkaz:
http://arxiv.org/abs/2307.04830
Publikováno v:
SciPost Phys. 16, 044 (2024)
Braiding of Majorana states demonstrates their non-Abelian exchange statistics. One implementation of braiding requires control of the pairwise couplings between all Majorana states in a trijunction device. To have adiabaticity, a trijunction device
Externí odkaz:
http://arxiv.org/abs/2307.03299
Publikováno v:
Phys. Rev. B 109, L081103 (2024)
We develop a theory of magnetic breakdown (MB) near high-order saddle points in the dispersions of two-dimensional materials, where two or more semiclassical cyclotron orbits approach each other. MB occurs due to quantum tunneling between several tra
Externí odkaz:
http://arxiv.org/abs/2303.07447