Nernst effect studies of Cooper pair fluctuations
Sign Up to like & getrecommendations! Published in 2018 at "Physica C: Superconductivity and its Applications"
DOI: 10.1016/j.physc.2018.05.014
Abstract: Abstract In this proceeding, we summarize the experimental work leading to the discovery of the Nernst signal generated by Cooper pair fluctuations. We will show that this Nernst signal has remarkable characteristics that enable an… read more here.
Keywords: nernst effect; effect studies; nernst signal; pair fluctuations ... See more keywords
Noise cross-correlation and Cooper pair splitting efficiency in multi-teminal superconductor junctions
Sign Up to like & getrecommendations! Published in 2017 at "Solid State Communications"
DOI: 10.1016/j.ssc.2017.04.009
Abstract: Abstract We analyze the non-local shot noise in a multi-terminal junction formed by two Normal metal leads connected to one superconductor. Using the cross Fano factor and the shot noise, we calculate the efficiency of… read more here.
Keywords: cross correlation; efficiency; noise cross; cooper pair ... See more keywords
Charge sensitivity of a cavity-embedded Cooper pair transistor limited by single-photon shot noise
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Applied Physics"
DOI: 10.1063/5.0062421
Abstract: Using an operator scattering approach, we analyze the quantum dynamics of an ultrasensitive electrometer – a Cooper pair transistor embedded in a quarter-wave microwave cavity (cCPT). While the cCPT is inherently a tunable, strongly nonlinear… read more here.
Keywords: photon; charge sensitivity; cooper pair; cavity ... See more keywords
Electron and Cooper-pair transport across a single magnetic molecule explored with a scanning tunneling microscope
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.195429
Abstract: Financial support by the Deutsche Forschungsgemeinschaft through Grant No. KR 2912/10-1, the FCT (Projects No. PTDC/FIS-NAN/4662/2014 and No. P2020-PTDC/FISNAN/3668/2014), and the MINECO-Spain (MAT2016-78625-C2) is acknowledged. J.L.L. acknowledges financial support from the ETH Zurich Postdoctoral Fellowship… read more here.
Keywords: electron cooper; cooper pair; across single; transport across ... See more keywords
Magnetic-field-dependent quasiparticle dynamics of nanowire single-Cooper-pair transistors
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.174502
Abstract: Parity control of superconducting islands hosting Majorana zero modes (MZMs) is required to operate topological qubits made from proximitized semiconductor nanowires. We test this control by studying parity effects in hybrid InAs-Al single-Cooper-pair transistors (SCPTs)… read more here.
Keywords: pair transistors; field; cooper pair; magnetic field ... See more keywords
Manipulation of Cooper pair entanglement in hybrid topological Josephson junctions
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.064514
Abstract: The non-local manipulation of spin-entangled states by means of local gating in two parallel 2D topological insulators properly connected to two superconducting electrodes is studied. We calculate analytically the current-phase relationship of the Josephson current… read more here.
Keywords: manipulation cooper; hybrid topological; pair entanglement; entanglement hybrid ... See more keywords
Heat switch and thermoelectric effects based on Cooper-pair splitting and elastic cotunneling
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.99.115127
Abstract: In this paper, we demonstrate that the hybrid normal-superconducting-normal (NSN) structure has potential for a multifunctional thermal device which could serve for heat flux control and cooling of microstructures. By adopting the scattering matrix approach,… read more here.
Keywords: heat; heat switch; pair splitting; elastic cotunneling ... See more keywords
Enhanced Cooper-Pair Injection into a Semiconductor Structure by Resonant Tunneling.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.128.127701
Abstract: We demonstrate enhanced Andreev reflection in a Nb/InGaAs/InP-based superconductor-semiconductor hybrid device resulting in increased Cooper-pair injection efficiency, achieved by Cooper-pair tunneling into a semiconductor quantum well resonant state. We show this enhancement by investigating the… read more here.
Keywords: pair injection; pair; semiconductor; cooper pair ... See more keywords
Local and Nonlocal Two-Electron Tunneling Processes in a Cooper Pair Splitter.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.207703
Abstract: We measure the rates and coupling coefficients for local Andreev, nonlocal Andreev, and elastic cotunneling processes. The nonlocal Andreev process, giving rise to Cooper pair splitting, exhibits the same coupling coefficient as the elastic cotunneling… read more here.
Keywords: pair; cooper pair; electron tunneling; two electron ... See more keywords
New orientations of the Cooper pair momentum in FFLO state for asymmetric D-wave fermion superfluids
Sign Up to like & getrecommendations! Published in 2019 at "Modern Physics Letters B"
DOI: 10.1142/s0217984919500829
Abstract: The Fulde–Ferrell–Larkin–Ovchinnikov (FFLO) state in asymmetric D-wave fermion superfluids is investigated generally. The angle dependence of the pairing gap (angle-dependent gap) for D-wave is also considered. Except the two special orientations of the Cooper pair… read more here.
Keywords: fflo; orientations cooper; state; cooper pair ... See more keywords
Cooper pair splitting controlled by a temperature gradient
Sign Up to like & getrecommendations! Published in 2023 at "Beilstein Journal of Nanotechnology"
DOI: 10.3762/bjnano.14.7
Abstract: Electrons in two different normal metallic electrodes attached to a sufficiently thin superconducting island may become entangled due to the effect of Cooper pair splitting. This phenomenon is of fundamental importance and may also have… read more here.
Keywords: pair splitting; temperature gradient; cooper pair;