Zobrazeno 1 - 10
of 499
pro vyhledávání: '"Danon J"'
Autor:
Michal, V. P., Fujita, T., Baart, T. A., Danon, J., Reichl, C., Wegscheider, W., Vandersypen, L. M. K., Nazarov, Y. V.
We study the Zeeman splitting in lateral quantum dots that are defined in GaAs-AlGaAs het- erostructures by means of split gates. We demonstrate a non-linear dependence of the splitting on magnetic field and its substantial variations from dot to dot
Externí odkaz:
http://arxiv.org/abs/1709.08971
Autor:
Deng, M. T., Vaitiekenas, S., Hansen, E. B., Danon, J., Leijnse, M., Flensberg, K., Nygård, J., Krogstrup, P., Marcus, C. M.
Publikováno v:
Science 354, 1557-1562 (2016)
Hybrid nanowires combining semiconductor and superconductor materials appear well suited for the creation, detection, and control of Majorana bound states (MBSs). We demonstrate the emergence of MBSs from coalescing Andreev bound states (ABSs) in a h
Externí odkaz:
http://arxiv.org/abs/1612.07989
Autor:
Albrecht, S. M., Hansen, E. B., Higginbotham, A. P., Kuemmeth, F., Jespersen, T. S., Nygård, J., Krogstrup, P., Danon, J., Flensberg, K., Marcus, C. M.
Publikováno v:
Phys. Rev. Lett. 118, 137701 (2017)
We investigate effects of quasiparticle poisoning in a Majorana island with strong tunnel coupling to normal-metal leads. In addition to the main Coulomb blockade diamonds, "shadow" diamonds appear, shifted by 1e in gate voltage, consistent with tran
Externí odkaz:
http://arxiv.org/abs/1612.05748
Autor:
Suominen, H. J., Danon, J., Kjaergaard, M., Flensberg, K., Shabani, J., Palmstrøm, C. J., Nichele, F., Marcus, C. M.
Publikováno v:
Phys. Rev. B 95, 035307 (2017)
We investigate patterns of critical current as a function of perpendicular and in-plane magnetic fields in superconductor-semiconductor-superconductor (SNS) junctions based on InAs/InGaAs heterostructures with an epitaxial Al layer. This material sys
Externí odkaz:
http://arxiv.org/abs/1611.00190
Publikováno v:
Phys. Rev. B 89, 075417 (2014)
We present time-resolved measurements of spin-flip photon-assisted tunneling and spin-flip relaxation in a doubly occupied double quantum dot. The photon-assisted excitation rate as a function of magnetic field indicates that spin-orbit coupling is t
Externí odkaz:
http://arxiv.org/abs/1401.0881
Autor:
Danon, J.
We theoretically study the $(1,1)$ triplet to $(0,2)$ singlet relaxation rate in a lateral gate-defined double quantum dot tuned to the regime of Pauli spin blockade. We present a detailed derivation of the effective phonon density of states for this
Externí odkaz:
http://arxiv.org/abs/1302.7169
Autor:
Frolov, S. M., Danon, J., Nadj-Perge, S., Zuo, K., van Tilburg, J. W. W., Pribiag, V. S., Berg, J. W. G. van den, Bakkers, E. P. A. M., Kouwenhoven, L. P.
We use electric dipole spin resonance to measure dynamic nuclear polarization in InAs nanowire quantum dots. The resonance shifts in frequency when the system transitions between metastable high and low current states, indicating the presence of nucl
Externí odkaz:
http://arxiv.org/abs/1209.1510
Autor:
Danon, J., Nazarov, Yu. V.
Publikováno v:
Phys. Rev. B 83, 245306 (2011)
In this work we present a new formalism to evaluate the nuclear spin dynamics driven by hyperfine interaction with non-equilibrium electron spins. To describe the dynamics up to second order in the hyperfine coupling, it suffices to evaluate the susc
Externí odkaz:
http://arxiv.org/abs/1011.3378
Autor:
Schreiber, L. R., Braakman, F. R., Meunier, T., Calado, V., Danon, J., Taylor, J. M., Wegscheider, W., Vandersypen, L. M. K.
Publikováno v:
Nat. Commun. 2:556 (2011)
Artificial molecules containing just one or two electrons provide a powerful platform for studies of orbital and spin quantum dynamics in nanoscale devices. A well-known example of these dynamics is tunneling of electrons between two coupled quantum
Externí odkaz:
http://arxiv.org/abs/1010.5682
Autor:
Nadj-Perge, S., Frolov, S. M., van Tilburg, J. W. W., Danon, J., Nazarov, Yu. V., Algra, R., Bakkers, E. P. A. M., Kouwenhoven, L. P.
We have achieved the few-electron regime in InAs nanowire double quantum dots. Spin blockade is observed for the first two half-filled orbitals, where the transport cycle is interrupted by forbidden transitions between triplet and singlet states. Par
Externí odkaz:
http://arxiv.org/abs/1002.2120