Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Lutchyn, R. M."'
Autor:
Ness, H., Corsetti, F., Pashov, D., Verstichel, B., Winkler, G. W., van Schilfgaarde, M., Lutchyn, R. M.
Publikováno v:
Physical Review B 110, 195301 (2024)
The electronic structure of surfaces and interfaces plays a key role in the properties of quantum devices. Here, we study the electronic structure of realistic Al/InAs/Al heterojunctions using a combination of density functional theory (DFT) with hyb
Externí odkaz:
http://arxiv.org/abs/2403.17809
Autor:
Vaitiekėnas, S., Winkler, G. W., van Heck, B., Karzig, T., Deng, M. -T., Flensberg, K., Glazman, L. I., Nayak, C., Krogstrup, P., Lutchyn, R. M., Marcus, C. M.
Publikováno v:
Science 367, eaav3392 (2020)
We present a novel route to realizing topological superconductivity using magnetic flux applied to a full superconducting shell surrounding a semiconducting nanowire core. In the destructive Little-Parks regime, reentrant regions of superconductivity
Externí odkaz:
http://arxiv.org/abs/2003.13177
Autor:
Lutchyn, R. M., Bakkers, E. P. A. M., Kouwenhoven, L. P., Krogstrup, P., Marcus, C. M., Oreg, Y.
Publikováno v:
Nat Rev Mater 3, 52 - 68 (2018)
Realizing topological superconductivity and Majorana zero modes in the laboratory is one of the major goals in condensed matter physics. We review the current status of this rapidly-developing field, focusing on semiconductor-superconductor proposals
Externí odkaz:
http://arxiv.org/abs/1707.04899
Publikováno v:
Phys. Rev. Lett. 119, 116802 (2017)
Motivated by recent experiments with proximitized nanowires, we study a mesoscopic s-wave superconductor connected via point contacts to normal-state leads. We demonstrate that at energies below the charging energy the system is described by the two-
Externí odkaz:
http://arxiv.org/abs/1706.04726
Publikováno v:
Phys. Rev. B 93, 235431 (2016)
We identify the leading processes of electron transport across finite-length segments of proximitized nanowires and build a quantitative theory of their two-terminal conductance. In the presence of spin-orbit interaction, a nanowire can be tuned acro
Externí odkaz:
http://arxiv.org/abs/1603.08258
Autor:
Shabani, J., Kjaergaard, M., Suominen, H. J., Kim, Younghyun, Nichele, F., Pakrouski, K., Stankevic, T., Lutchyn, R. M., Krogstrup, P., Feidenhans'l, R., Kraemer, S., Nayak, C., Troyer, M., Marcus, C. M., Palmstrøm, C. J.
Publikováno v:
Phys. Rev. B 93, 155402 (2016)
Progress in the emergent field of topological superconductivity relies on synthesis of new material combinations, combining superconductivity, low density, and spin-orbit coupling (SOC). For example, theory [1-4] indicates that the interface between
Externí odkaz:
http://arxiv.org/abs/1511.01127
Spin-orbit coupling in solids describes an interaction between an electron's spin, an internal quantum-mechanical degree of freedom, with its linear momentum, an external property. Spin-orbit interaction, due to its relativistic nature, is typically
Externí odkaz:
http://arxiv.org/abs/1408.1122
Publikováno v:
Phys. Rev. B 91, 195434 (2015)
We present experiments on the dynamics of a two-state parametric fluctuator in a superconducting flux qubit. In spectroscopic measurements, the fluctuator manifests itself as a doublet line. When the qubit is excited in resonance with one of the two
Externí odkaz:
http://arxiv.org/abs/1406.7350
Publikováno v:
Phys. Rev. B 85, 245121 (2012)
One of the most promising proposals for engineering topological superconductivity and Majorana fermions employs a spin-orbit coupled nanowire subjected to a magnetic field and proximate to an s-wave superconductor. When only part of the wire's length
Externí odkaz:
http://arxiv.org/abs/1203.4818
Publikováno v:
Phys. Rev. B 78, 220504(R) (2008)
Using an imaginary-time path integral approach, we develop the perturbation theory suited to the boson Hubbard model, and apply it to calculate the effects of a dilute gas of spin-polarized fermions weakly interacting with the bosons. The full theory
Externí odkaz:
http://arxiv.org/abs/0806.2865