Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Alex Zazunov"'
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013244 (2024)
We propose active steering protocols for quantum state preparation in quantum circuits where each system qubit is connected to a single detector qubit, employing a simple coupling selected from a small set of steering operators. The decision is made
Externí odkaz:
https://doaj.org/article/ebc8f9746e184254827c2997cbed5968
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 9, Iss 1, Pp 1659-1676 (2018)
We present a theoretical analysis of the equilibrium Josephson current-phase relation in hybrid devices made of conventional s-wave spin-singlet superconductors (S) and topological superconductor (TS) wires featuring Majorana end states. Using Green
Externí odkaz:
https://doaj.org/article/48372a7423404fd6b039f82051780bc7
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023054 (2020)
We propose multi-particle interference protocols in the time-energy domain which are able to probe localized topological quasiparticles. Using a set of quantum dots tunnel-coupled to a topologically nontrivial system, the time dependence of the dot l
Externí odkaz:
https://doaj.org/article/aeb18892a99e42c2b65f9369d5b28826
Publikováno v:
Physical Review X, Vol 4, Iss 3, p 031033 (2014)
We study the ground state of N weakly interacting electrons (with N≤10) in a two-dimensional parabolic quantum dot with strong Rashba spin-orbit coupling. Using dimensionless parameters for the Coulomb interaction λ≲1 and the Rashba coupling α
Externí odkaz:
https://doaj.org/article/6f0a7ed54b78409290cdafa8c537d123
Publikováno v:
New Journal of Physics, Vol 16, Iss 1, p 015010 (2014)
We provide a comprehensive theoretical description of low-energy quantum transport for a Coulomb–Majorana junction, where several helical Luttinger liquid nanowires are coupled to a joint mesoscopic superconductor with finite charging energy. Inclu
Externí odkaz:
https://doaj.org/article/3b3a7d58a7934c448d39d83702e9f37e
Publikováno v:
New Journal of Physics, Vol 15, Iss 3, p 035033 (2013)
We study a general Majorana junction, where N helical nanowires are connected to a common s-wave superconductor proximity-inducing Majorana bound states in the wires. The normal part of each wire ( j = 1,…, N ) acts as connected lead, where electro
Externí odkaz:
https://doaj.org/article/880dec2f00824938997f7af65c3016a9
Autor:
Thibaut Jonckheere, Jérôme Rech, Alex Zazunov, Ken-Ichiro Imura, R. Jacquet, Thierry Martin, A. Popoff, Laurent Raymond
Publikováno v:
Physical Review B
Physical Review B, American Physical Society, 2020, 102 (6), pp.064510. ⟨10.1103/PhysRevB.102.064510⟩
Physical Review B, 2020, 102 (6), pp.064510. ⟨10.1103/PhysRevB.102.064510⟩
Physical Review B, American Physical Society, 2020, 102 (6), pp.064510. ⟨10.1103/PhysRevB.102.064510⟩
Physical Review B, 2020, 102 (6), pp.064510. ⟨10.1103/PhysRevB.102.064510⟩
We consider the out-of-equilibrium behavior of a general class of mesoscopic devices composed of several superconducting or/and normal metal leads separated by quantum dots. Starting from a microscopic Hamiltonian description, we provide a non-pertur
We propose driven dissipative Majorana platforms for the stabilization and manipulation of robust quantum states. For Majorana box setups, in the presence of environmental electromagnetic noise and with tunnel couplings to quantum dots, we show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2688e3db0989d24ad519074457b3f5a7
http://arxiv.org/abs/2003.13979
http://arxiv.org/abs/2003.13979
Publikováno v:
Biblos-e Archivo. Repositorio Institucional de la UAM
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The boundary Green's function (bGF) approach has been established as a powerful theoretical technique for computing the transport properties of tunnel-coupled hybrid nanowire devices. Such nanowires may exhibit topologically nontrivial superconductin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a15e9ffe819a4636e04a3f04c3593172
https://hdl.handle.net/10486/703613
https://hdl.handle.net/10486/703613
Autor:
Jérôme Rech, Laurent Raymond, Alex Zazunov, Thibaut Jonckheere, Thierry Martin, Reinhold Egger
Publikováno v:
Eur.Phys.J.ST
Eur.Phys.J.ST, 2020, 229 (4), pp.577-592. ⟨10.1140/epjst/e2019-900119-5⟩
Eur.Phys.J.ST, 2020, 229 (4), pp.577-592. ⟨10.1140/epjst/e2019-900119-5⟩
International audience; A finite topological superconductor nanowire bears a Majorana fermion at its ends, leading to unique transport properties when connected to normal metal leads. We consider in this review two theoretical proposals based on nois
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca97c97704bed0136c84b607b5913dcc
https://hal.archives-ouvertes.fr/hal-02497829
https://hal.archives-ouvertes.fr/hal-02497829