301 citations · 5.2k across the 146 of their papers we have counts for
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Real-time dynamics of triplet-resonant tunneling driven by nonequilibrium phonons
Kazuyuki Kuroyama, Sasha R. Valentin, Arne Ludwig +4
Driven nonequilibrium systems can host emergent functionalities beyond equilibrium, but real-time access to excited-state dynamics remains limited. Here we report real-time measure…
Electrical control of a Kondo spin screening cloud
Ngoc Han Tu, Donghoon Kim, Minsoo L. Kim +8
Quantitative analysis of quantum many-body systems, consisting of numerous itinerant electrons that interact with localized spins or electrons, is a long-standing issue. The Kondo…
Dynamics of quantum cellular automata electron transition in triple quantum dots
Takumi Aizawa, Motoya Shinozaki, Yoshihiro Fujiwara +5
The quantum cellular automata (QCA) effect is a transition in which multiple electron move coordinately by Coulomb interactions and observed in multiple quantum dots. This effect w…
Accelerated adiabatic passage of a single electron spin qubit in quantum dots
Xiao-Fei Liu, Yuta Matsumoto, Takafumi Fujita +3
Adiabatic processes can keep the quantum system in its instantaneous eigenstate, which is robust to noises and dissipation. However, it is limited by sufficiently slow evolution. H…
The interplay between electron tunneling and Auger emission in a single quantum emitter weakly coupled to an electron reservoir
Marcel Zöllner, Hendrik Mannel, Fabio Rimek +6
In quantum dots (QDs) the Auger recombination is a non-radiative scattering process in which the optical transition energy of a charged exciton (trion) is transferred to an additio…
Controlled Coherent Coupling in a Quantum Dot Molecule Revealed by Ultrafast Four-Wave Mixing Spectroscopy
Daniel Wigger, Johannes Schall, Marielle Deconinck +18
Semiconductor quantum dot molecules are considered as promising candidates for quantum technological applications due to their wide tunability of optical properties and coverage of…
Tailoring potentials by simulation-aided design of gate layouts for spin qubit applications
Inga Seidler, Malte Neul, Eugen Kammerloher +9
Gate-layouts of spin qubit devices are commonly adapted from previous successful devices. As qubit numbers and the device complexity increase, modelling new device layouts and opti…
Magnetic tuning of the tunnel coupling in an optically active quantum dot molecule
Frederik Bopp, Charlotte Cullip, Christopher Thalacker +15
Self-assembled optically active quantum dot molecules (QDMs) allow the creation of protected qubits via singlet-triplet spin states. The qubit energy splitting of these states is d…
Coherent driving of direct and indirect excitons in a quantum dot molecule
Frederik Bopp, Johannes Schall, Nikolai Bart +13
Quantum dot molecules (QDMs) are one of the few quantum light sources that promise deterministic generation of one- and two-dimensional photonic graph states. The proposed protocol…
In-flight detection of few electrons using a singlet-triplet spin qubit
Vivien Thiney, Pierre-André Mortemousque, Konstantinos Rogdakis +6
We investigate experimentally the capacitive coupling between a two-electron singlet-triplet spin qubit and flying electrons propagating in quantum Hall edge channels. After calibr…
Coulomb-mediated antibunching of an electron pair surfing on sound
Junliang Wang, Hermann Edlbauer, Aymeric Richard +14
Electron flying qubits are envisioned as potential information link within a quantum computer, but also promise -- alike photonic approaches -- a self-standing quantum processing u…
Visual explanations of machine learning model estimating charge states in quantum dots
Yui Muto, Takumi Nakaso, Motoya Shinozaki +13
Charge state recognition in quantum dot devices is important in the preparation of quantum bits for quantum information processing. Toward auto-tuning of larger-scale quantum devic…
Complete readout of two-electron spin states in a double quantum dot
Martin Nurizzo, Baptiste Jadot, Pierre-André Mortemousque +9
We propose and demonstrate complete spin state readout of a two-electron system in a double quantum dot probed by an electrometer. The protocol is based on repetitive single shot m…
Structural symmetry-breaking to explain radiative Auger transitions in self-assembled quantum dots
Krzysztof Gawarecki, Clemens Spinnler, Liang Zhai +6
The optical spectrum of a quantum dot is typically dominated by the fundamental transition between the lowest-energy configurations. However, the radiative Auger process can result…
Generation of a single-cycle acoustic pulse: a scalable solution for transport in single-electron circuits
Junliang Wang, Shunsuke Ota, Hermann Edlbauer +13
The synthesis of single-cycle, compressed optical and microwave pulses sparked novel areas of fundamental research. In the field of acoustics, however, such a generation has not be…
Controlled quantum dot array segmentation via a highly tunable interdot tunnel coupling
Martin Nurizzo, Baptiste Jadot, Pierre-André Mortemousque +8
Recent demonstrations using electron spins stored in quantum dots array as qubits are promising for developing a scalable quantum computing platform. An ongoing effort is therefore…
Semiconductor membranes for electrostatic exciton trapping in optically addressable quantum transport devices
Thomas Descamps, Feng Liu, Sebastian Kindel +9
Combining the capabilities of gate defined quantum transport devices in GaAs-based heterostructures and of optically addressed self-assembled quantum dots could open broad perspect…
Quantum dot molecule devices with optical control of charge status and electronic control of coupling
Frederik Bopp, Jonathan Rojas, Natalia Revenga +13
Tunnel-coupled pairs of optically active quantum dots - quantum dot molecules (QDMs) - offer the possibility to combine excellent optical properties such as strong light-matter cou…
Auger and spin dynamics in a self-assembled quantum dot
Hendrik Mannel, Jens Kerski, Pia Lochner +5
The Zeeman-split spin states of a single quantum dot can be used together with its optical trion transitions to form a spin-photon interface between a stationary (the spin) and a f…
Sensing dot with high output swing for scalable baseband readout of spin qubits
Eugen Kammerloher, Andreas Schmidbauer, Laura Diebel +9
A crucial requirement for quantum computing, in particular for scalable quantum computing and error correction, is a fast and high-fidelity qubit readout. For semiconductor based q…
In-flight distribution of an electron within a surface acoustic wave
Hermann Edlbauer, Junliang Wang, Shunsuke Ota +13
Surface acoustic waves (SAW) have large potential to realize quantum-optics-like experiments with single flying electrons employing their spin or charge degree of freedom. For such…
Heat-Driven Electron-Motion in a Nanoscale Electronic Circuit
Shintaro Takada, Giorgos Georgiou, Everton Arrighi +8
We study the interaction between two closely spaced but electrically isolated quasi-one-dimensional electrical wires by a drag experiment. In this work we experimentally demonstrat…
Real-time observation of charge-spin cooperative dynamics driven by a nonequilibrium phonon environment
Kazuyuki Kuroyama, Sadashige Matsuo, Jo Muramoto +6
Quantum dots are recognized as a suitable platform for studying thermodynamic phenomena involving single electronic charges and spins in nano-scale devices. However, such a thermod…
Enhanced spin coherence while displacing electron in a 2D array of quantum dots
Pierre-André Mortemousque, Baptiste Jadot, Emmanuel Chanrion +6
The ability to shuttle coherently individual electron spins in arrays of quantum dots is a key procedure for the development of scalable quantum information platforms. It allows th…