output
20132026
most citedExperimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km

2.8k citations

Showing cond-mat.mes-hallShow all

243 papers · 1 filter

cond-mat.mes-hall2026

Observation of magnetic quantum phase crossovers in a semiconductor spin ladder

Elizaveta Morozova, Xin Zhang, Utso Bhattacharya +9

Understanding collective phases of strongly correlated quantum magnets relies on theoretically tractable model systems with precise microscopic control. Antiferromagnetic spin ladd…

cond-mat.mes-hall2025★ 1 cited

Many-body interferometry with semiconductor spins

Daniel Jirovec, Stefano Reale, Pablo Cova-Fariña +9

Quantum simulators enable studies of many-body phenomena which are intractable with classical hardware. Spins in devices based on semiconductor quantum dots promise precise electri…

cond-mat.mes-hall2025★ 1 cited

Decoherence and fidelity enhancement during shuttling of entangled spin qubits

Yu-Ning Zhang, Aleksandr S. Mokeev, Viatcheslav V. Dobrovitski

Shuttling of spin qubits between different locations is a key element in many prospective semiconductor systems for quantum information processing, but the shuttled qubits should b…

cond-mat.mes-hall2025★ 3 cited

Hamiltonian Learning of Triplon Excitations in an Artificial Nanoscale Molecular Quantum Magnet

Rouven Koch, Robert Drost, Peter Liljeroth +1

Extracting the Hamiltonian parameters of nanoscale quantum magnets from experimental measurements is a significant challenge in quantum matter. Here we establish a machine learning…

cond-mat.mes-hall2025

Coherence of a hole spin flopping-mode qubit in a circuit quantum electrodynamics environment

Léo Noirot, Cécile X. Yu, José C. Abadillo-Uriel +5

The entanglement of microwave photons and spin qubits in silicon represents a pivotal step forward for quantum information processing utilizing semiconductor quantum dots. Such hyb…

cond-mat.mes-hall2025★ 4 cited

Mitigation of exchange cross-talk in dense quantum dot arrays

Daniel Jirovec, Pablo Cova Fariña, Stefano Reale +7

Coupled spins in semiconductor quantum dots are a versatile platform for quantum computing and simulations of complex many-body phenomena. However, on the path of scale-up, cross-t…

cond-mat.mes-hall2025★ 10 cited

Single-step high-fidelity three-qubit gates by anisotropic chiral interactions

Minh T. P. Nguyen, Maximilian Rimbach-Russ, Lieven M. K. Vandersypen +1

Direct multi-qubit gates are becoming critical to facilitate quantum computations in near-term devices by reducing the gate counts and circuit depth. Here, we demonstrate that fast…

cond-mat.mes-hall2024★ 5 cited

A spinless spin qubit

Maximilian Rimbach-Russ, Valentin John, Barnaby van Straaten +1

All-electrical baseband control of qubits facilitates scaling up quantum processors by removing issues of crosstalk and heat generation. In semiconductor quantum dots, this is enab…

cond-mat.mes-hall2024★ 11 cited

A two-dimensional 10-qubit array in germanium with robust and localised qubit control

Valentin John, Cécile X. Yu, Barnaby van Straaten +10

Quantum computers require the systematic operation of qubits with high fidelity. For holes in germanium, the spin-orbit interaction allows for \textit{in situ} electric fast and hi…

cond-mat.mes-hall2024★ 2 cited

Automated in situ optimization and disorder mitigation in a quantum device

Jacob Benestad, Torbjørn Rasmussen, Bertram Brovang +9

We investigate automated in situ optimization of the potential landscape in a quantum point contact device, using a gate array patterned atop the constriction. Optimiz…

cond-mat.mes-hall2024★ 8 cited

Reducing disorder in Ge quantum wells by using thick SiGe barriers

Davide Costa, Lucas E. A. Stehouwer, Yi Huang +4

We investigate the disorder properties of two-dimensional hole gases in Ge/SiGe heterostructures grown on Ge wafers, using thick SiGe barriers to mitigate the influence of the semi…

cond-mat.mes-hall2024★ 10 cited

Modular Autonomous Virtualization System for Two-Dimensional Semiconductor Quantum Dot Arrays

Anantha S. Rao, Donovan Buterakos, Barnaby van Straaten +8

Arrays of gate-defined semiconductor quantum dots are among the leading candidates for building scalable quantum processors. High-fidelity initialization, control, and readout of s…

cond-mat.mes-hall2024★ 16 cited

Exploiting epitaxial strained germanium for scaling low noise spin qubits at the micron-scale

Lucas E. A. Stehouwer, Cécile X. Yu, Barnaby van Straaten +10

Disorder in the heterogeneous material stack of semiconductor spin qubit systems introduces noise that compromises quantum information processing, posing a challenge to coherently…

cond-mat.mes-hall2024★ 31 cited

Observation of edge and bulk states in a three-site Kitaev chain

Sebastiaan L. D. ten Haaf, Yining Zhang, Qingzhen Wang +10

A chain of quantum dots (QDs) in semiconductor-superconductor hybrid systems can form an artificial Kitaev chain hosting Majorana bound states (MBSs). These zero-energy states are…

cond-mat.mes-hall2024★ 8 cited

Autonomous Bootstrapping of Quantum Dot Devices

Anton Zubchenko, Danielle Middlebrooks, Torbjørn Rasmussen +4

Semiconductor quantum dots (QDs) are a promising platform for multiple different qubit implementations, all of which are voltage controlled by programmable gate electrodes. However…

cond-mat.mes-hall2024★ 4 cited

Computational quantum transport: a scattering approach perspective

Xavier Waintal, Michael Wimmer, Anton Akhmerov +5

This review is devoted to the different techniques that have been developed to compute the phase-coherent transport properties of quantum nanoelectronic systems connected to electr…

cond-mat.mes-hall2024★ 27 cited

High-fidelity single-spin shuttling in silicon

Maxim De Smet, Yuta Matsumoto, Anne-Marije J. Zwerver +12

The computational power and fault-tolerance of future large-scale quantum processors derive in large part from the connectivity between the qubits. One approach to increase connect…

cond-mat.mes-hall2024★ 4 cited

Quadrupolar resonance spectroscopy of individual nuclei using a room-temperature quantum sensor

S. Alex Breitweiser, Mathieu Ouellet, Tzu-Yung Huang +2

Nuclear quadrupolar resonance (NQR) spectroscopy reveals chemical bonding patterns in materials and molecules through the unique coupling between nuclear spins and local fields. Ho…

cond-mat.mes-hall2024★ 17 cited

A quantum dot in germanium proximitized by a superconductor

Lazar Lakic, William I. L. Lawrie, David van Driel +6

Planar germanium quantum wells have recently been shown to host hard-gapped superconductivity. Additionally, quantum dot spin qubits in germanium are well-suited for quantum inform…

cond-mat.mes-hall2024★ 10 cited

Supercurrent through an Andreev trimer

Alberto Bordin, Florian J. Bennebroek Evertsz', Gorm O. Steffensen +8

Detection and control of Andreev Bound States (ABSs) localized at semiconductor-superconductor interfaces are essential for their use in quantum applications. Here we investigate t…

cond-mat.mes-hall2024★ 80 cited

Operating semiconductor quantum processors with hopping spins

Chien-An Wang, Valentin John, Hanifa Tidjani +16

Qubits that can be efficiently controlled are essential for the development of scalable quantum hardware. While resonant control is used to execute high-fidelity quantum gates, the…

cond-mat.mes-hall2024★ 15 cited

Compromise-Free Scaling of Qubit Speed and Coherence

Miguel J. Carballido, Simon Svab, Rafael S. Eggli +12

Across leading qubit platforms, a common trade-off persists: increasing coherence comes at the cost of operational speed, reflecting the notion that protecting a qubit from its noi…

cond-mat.mes-hall2024★ 11 cited

Coupled vertical double quantum dots at single-hole occupancy

Alexander Ivlev, Hanifa Tidjani, Stefan Oosterhout +3

Gate-defined quantum dots define an attractive platform for quantum computation and have been used to confine individual charges in a planar array. Here, we demonstrate control ove…

cond-mat.mes-hall2023★ 47 cited

Universal control of four singlet-triplet qubits

Xin Zhang, Elizaveta Morozova, Maximilian Rimbach-Russ +9

The coherent control of interacting spins in semiconductor quantum dots is of strong interest for quantum information processing as well as for studying quantum magnetism from the…