Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
- University of Maryland, College ParkUS2.2k papers
- European Organization for Nuclear ResearchCH2.1k papers
- Centro Brasileiro de Pesquisas FísicasBR2.1k papers
- Imperial College LondonGB2.1k papers
- University of ZurichCH2k papers
- Massachusetts Institute of TechnologyUS2k papers
- Rutherford Appleton LaboratoryGB2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT1.9k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.9k papers
33 papers · 2 filters
All-electrical time-resolved spin generation and spin manipulation in n-InGaAs
I. Stepanov, S. Kuhlen, M. Ersfeld +2
We demonstrate all-electrical spin generation and subsequent manipulation by two successive electric field pulses in an n-InGaAs heterostructure in a time-resolved experiment at ze…
Hall Effect Gyrators and Circulators
Giovanni Viola, David P. DiVincenzo
The electronic circulator, and its close relative the gyrator, are invaluable tools for noise management and signal routing in the current generation of low-temperature microwave s…
Reducing disorder in graphene nanoribbons by chemical edge modification
Jan Dauber, Bernat Terrés, Christian Volk +2
We present electronic transport measurements on etched graphene nanoribbons on silicon dioxide before and after a short hydrouoric acid (HF) treatment. We report on changes in the…
Etched graphene single electron transistors on hexagonal boron nitride in high magnetic fields
A. Epping, S. Engels, C. Volk +4
We report on the fabrication and electrical characterisation of etched graphene single electron transistors (SETs) of various sizes on hexagonal boron nitride (hBN) in high magneti…
Measurement and dephasing of a flux qubit due to heat currents
Samuele Spilla, Fabian Hassler, Janine Splettstoesser
We study a flux qubit, made of a superconducting loop interrupted by three Josephson junctions, which is subject to a temperature gradient. We show that the heat current induced by…
Picosecond Dynamics of Internal Exciton Transitions in CdSe Nanorods
David G. Cooke, Peter Uhd Jepsen, Jun Yan Lek +3
The picosecond dynamics of excitons in colloidal CdSe nanorods are directly measured via their 1s to 2p-like internal transitions by ultra-broadband terahertz spectroscopy. Broaden…
Coherent Backaction of Quantum Dot Detectors: Qubit Isospin Precession
M. Hell, M. R. Wegewijs, D. P. DiVincenzo
A sensitive technique for the readout of the state of a qubit is based on the measurement of the conductance through a proximal sensor quantum dot (SQD). Here, we theoretically stu…
Majorana fermions coupled to electromagnetic radiation
Christoph Ohm, Fabian Hassler
We consider a voltage-biased Josephson junction between two nanowires hosting Majorana zero modes which occur as topological protected zero-energy excitations at the junction. We s…
Spectral Properties and Local Density of States of Disordered Quantum Hall Systems with Rashba Spin-Orbit Coupling
Daniel Hernangomez-Perez, Jascha Ulrich, Serge Florens +1
We theoretically investigate the spectral properties and the spatial dependence of the local density of states (LDoS) in disordered two-dimensional electron gases (2DEG) in the qua…
Quantum Nature of Edge Magnetism in Graphene
Michael Golor, Stefan Wessel, Manuel J. Schmidt
It is argued that the subtle crossover from decoherence-dominated classical magnetism to fluctuation-dominated quantum magnetism is experimentally accessible in graphene nanoribbon…
Local transport measurements on epitaxial graphene
Jens Baringhaus, Frederik Edler, Christoph Neumann +4
Growth of large-scale graphene is still accompanied by imperfections. By means of a four-tip STM/SEM the local structure of graphene grown on SiC(0001) was correlated with scanning…
Structural and electronic properties of hybrid graphene and boron nitride nanostructures on Cu
Yan Li, Riccardo Mazzarello
Recently, two-dimensional nanostructures consisting of alternating graphene and boron nitride (BN) domains have been synthesized. These systems possess interesting electronic and m…
Etched graphene quantum dots on hexagonal boron nitride
S. Engels, A. Epping, C. Volk +6
We report on the fabrication and characterization of etched graphene quantum dots (QDs) on hexagonal boron nitride (hBN) and SiO2 with different island diameters. We perform a stat…
Evidence for topological band inversion of the phase change material Ge2Sb2Te5
Christian Pauly, Marcus Liebmann, Alessandro Giussani +8
We present an angle-resolved photoemission study of a ternary phase change material, namely Ge2Sb2Te5, epitaxially grown on Si(111) in the metastable cubic phase. The observed uppe…
Low-energy properties of fractional helical Luttinger liquids
Tobias Meng, Lars Fritz, Dirk Schuricht +1
We investigate the low-energy properties of (quasi) helical and fractional helical Luttinger liquids. In particular, we calculate the Drude peak of the optical conductivity, the de…
The quench dynamics of a dissipative quantum system: a renormalization group study
Oleksiy Kashuba, Dante M. Kennes, Mikhail Pletyukhov +2
We study dissipation in a small quantum system coupled to an environment held in thermodynamic equilibrium. The relaxation dynamics of a system subject to an abrupt quench in the p…
Heat, molecular vibrations, and adiabatic driving in non-equilibrium transport through interacting quantum dots
F. Haupt, M. Leijnse, H. L. Calvo +3
In this article we review aspects of charge and heat transport in interacting quantum dots and molecular junctions under stationary and time-dependent non-equilibrium conditions du…
Energy and particle number fluctuations in superconducting heterostructures
Ville J. Kauppila, Matti A. Laakso, Tero T. Heikkilä
We consider fluctuations of the energy on a mesoscopic island coupled to two leads. We use the Keldysh effective action formalism to derive the Langevin equation for the energy of…
Spin decoherence due to a randomly fluctuating spin bath
Alexandre Faribault, Dirk Schuricht
We study the decoherence of a spin in a quantum dot due to its hyperfine coupling to a randomly fluctuating bath of nuclear spins. The system is modelled by the central spin model…
Effects of non-equilibrium noise on a quantum memory encoded in Majorana zero modes
François Konschelle, Fabian Hassler
In order to increase the coherence time of topological quantum memories in systems with Majorana zero modes, it has recently been proposed to encode the logical qubit states in non…
Transport of spin-anisotropy without spin currents
Michael Hell, Sourin Das, Maarten Rolf Wegewijs
We revisit the transport of spin-degrees of freedom across an electrically and thermally biased tunnel junction between two ferromagnets with non-collinear magnetizations. Besides…
Magnetic Correlations in Short and Narrow Graphene Armchair Nanoribbons
Michael Golor, Cornelie Koop, Thomas C. Lang +2
Electronic states at the ends of a narrow armchair nanoribbon give rise to a pair of non-locally entangled spins. We propose two experiments to probe these magnetic states, based o…
Role of MgO barriers for spin and charge transport in Co/MgO/graphene non-local spin-valve devices
F. Volmer, M. Drögeler, E. Maynicke +4
We investigate spin and charge transport in both single and bilayer graphene non-local spin-valve devices. Similar to previous studies on bilayer graphene, we observe an inverse de…
Noise-Protected Gate for Six-Electron Double-Dot Qubits
Sebastian Mehl, David P. DiVincenzo
Singlet-triplet spin qubits in six-electron double quantum dots, in moderate magnetic fields, can show superior immunity to charge noise. This immunity results from the symmetry of…