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Related papers: Majorana single-charge transistor

200 papers

We investigate thermally-driven transport of heat and charge in a superconducting single-electron transistor by means of a real-time diagrammatic transport theory. Our theoretical approach allows us to account for strong Coulomb…

Mesoscale and Nanoscale Physics · Physics 2021-12-01 Alexander G. Bauer , Björn Sothmann

We theoretically investigate electronic transport through a junction where a quantum dot (QD) is tunnel coupled on both sides to semiconductor nanowires with strong spin-orbit interaction and proximity-induced superconductivity. The results…

Superconductivity · Physics 2014-12-09 Guang-Yao Huang , Martin Leijnse , Karsten Flensberg , Hongqi Xu

Charge is transported through superconducting SSS single-electron transistors at finite bias voltages by a combination of coherent Cooper-pair tunneling and quasiparticle tunneling. At low transport voltages the effect of an ``odd''…

Condensed Matter · Physics 2009-10-28 Jens Siewert , Gerd Schön

We have developed a detailed experimental study of a single-electron transistor in a strong tunneling regime. Although weakened by strong charge fluctuations, Coulomb effects were found to persist in all samples including one with the…

Condensed Matter · Physics 2009-10-31 D. Chouvaev , L. S. Kuzmin , D. S. Golubev , A. D. Zaikin

We determine the zero-bias anomaly of the conductance of tunnel junctions by an approach unifying the conventional Coulomb blockade theory for ultrasmall junctions with the diffusive anomalies in disordered conductors. Both,…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Joerg Rollbuehler , Hermann Grabert

The charge localization of single electrons on mesoscopic metallic islands leads to a suppression of the electrical current, known as the Coulomb blockade. When this correction is small, it enables primary electron thermometry, as it was…

Mesoscale and Nanoscale Physics · Physics 2021-07-23 Nikolai Yurttagül , Matthew Sarsby , Attila Geresdi

We study full counting statistics of electron transport through a Majorana single-charge transistor. At low bias voltage, transport is dominated by the so-called Josephson-Majorana cycle, a sequence of normal and anomalous single-charge and…

Mesoscale and Nanoscale Physics · Physics 2023-05-12 Eric Kleinherbers , Alexander Schünemann , Jürgen König

Tunnel transport of interacting spin-polarized electrons through a single-level vibrating quantum dot in external magnetic field is studied. By using density matrix method, the current-voltage characteristics and the dependence of…

Mesoscale and Nanoscale Physics · Physics 2021-03-23 A. D. Shkop , O. M. Bahrova , S. I. Kulinich , I. V. Krive

Electron transport through [normal metal]-[quantum dot]-[topological superconductor] junction is studied and reveals interlacing physics of Kondo correlations with two Majorana fermions bound state residing on the opposite edges of the…

Strongly Correlated Electrons · Physics 2013-05-29 Anatoly Golub , Igor Kuzmenko , Yshai Avishai

A current due to a tunneling event that involves three times the charge of an electron was observed in the current - voltage characteristics of a superconducting single-electron tunneling transistor. In this tunnel event, a Cooper pair…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 P. Hadley , E. Delvigne , E. H. Visscher , S. Lahteenmaki , J. E. Mooij

We incorporate an Al-AlO_x-Al single-electron transistor as the gate of a narrow (~100 nm) metal-oxide-semiconductor field-effect transistor (MOSFET). Near the MOSFET channel conductance threshold, we observe oscillations in the conductance…

Mesoscale and Nanoscale Physics · Physics 2011-11-10 L. Sun , K. R. Brown , B. E. Kane

Current-driven vibrational non-equilibrium induces vibrational sidebands in single-molecule transistors which arise from tunneling processes accompanied by absorption of vibrational quanta. Unlike conventional sidebands, these absorption…

Mesoscale and Nanoscale Physics · Physics 2008-03-27 Matthias C. Lüffe , Jens Koch , Felix von Oppen

We theoretically investigate inelastic transport through anisotropic magnetic molecules weakly coupled to one ferromagnetic and one nonmagnetic lead. We find that the current is suppressed over wide voltage ranges due to spin blockade. In…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Florian Elste , Carsten Timm

We have investigated the effects of long-range Coulomb interaction on the topological superconducting phase in a quasi-one dimensional semiconductor wire, proximity coupled to a s-wave using the exact diagonalization approach. We find that…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Areg Ghazaryan , Tapash Chakraborty

We present measurements of tunneling magneto-resistance (TMR) in single-wall carbon nanotubes attached to ferromagnetic contacts in the Coulomb blockade regime. Strong variations of the TMR with gate voltage over a range of four conductance…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Alois Dirnaichner , Milena Grifoni , Andreas Prüfling , Daniel Steininger , Andreas K. Hüttel , Christoph Strunk

We study a superconducting single-charge transistor, where the coherence of Cooper pair tunneling is destroyed by the coupling to a tunable dissipative environment. Sequential tunneling and cotunneling processes are analyzed to construct…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Frank K. Wilhelm , Gerd Schoen , Gergely T. Zimanyi

Motivated by a recent experimental report[1] claiming the likely observation of the Majorana mode in a semiconductor-superconductor hybrid structure[2,3,4,5], we study theoretically the dependence of the zero bias conductance peak…

Mesoscale and Nanoscale Physics · Physics 2013-01-09 Chien-Hung Lin , Jay D. Sau , S. Das Sarma

Linear transport through a single-walled carbon nanotube ring (CNR), pierced by a magnetic field and capacitively coupled to a gate voltage source, is investigated starting from a model of interacting $p_z$-electrons. The dc-conductance,…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 M. Eroms , L. Mayrhofer , M. Grifoni

We develop a method of theoretically investigating the charge, energy and heat transport in the presence of the charge Kondo correlations. The Coulomb blockade oscillations of heat conductance in the single electron transistor exhibiting…

Mesoscale and Nanoscale Physics · Physics 2021-01-01 D. B. Karki

Hybrid semiconductor-superconductor devices hold great promise for realizing topological quantum computing with Majorana zero modes (MZMs). However, multiple claims of Majorana detection, based on either tunneling or Coulomb blockade (CB)…