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

2.8k citations

Showing 2022Show all

61 papers · 1 filter

quant-ph2022★ 14 cited

Realization of a quantum neural network using repeat-until-success circuits in a superconducting quantum processor

M. S. Moreira, G. G. Guerreschi, W. Vlothuizen +14

Artificial neural networks are becoming an integral part of digital solutions to complex problems. However, employing neural networks on quantum processors faces challenges related…

cond-mat.mes-hall2022★ 11 cited

Spin-filtered measurements of Andreev bound states

David van Driel, Guanzhong Wang, Alberto Bordin +9

A semiconductor nanowire brought in proximity to a superconductor can form discrete, particle-hole symmetric states, known as Andreev bound states (ABSs). An ABS can be found in it…

cond-mat.mes-hall2022★ 68 cited

Controlled crossed Andreev reflection and elastic co-tunneling mediated by Andreev bound states

Alberto Bordin, Guanzhong Wang, Chun-Xiao Liu +12

A short superconducting segment can couple attached quantum dots via elastic co-tunneling (ECT) and crossed Andreev reflection (CAR). Such coupled quantum dots can host Majorana bo…

quant-ph2022★ 546 cited

Quantum repeaters: From quantum networks to the quantum internet

Koji Azuma, Sophia E. Economou, David Elkouss +4

A quantum internet is the holy grail of quantum information processing, enabling the deployment of a broad range of quantum technologies and protocols on a global scale. However, n…

quant-ph2022

Quantum memory assisted observable estimation

Liubov A. Markovich, Attaallah Almasi, Sina Zeytinoğlu +1

The estimation of many-qubit observables is an essential task of quantum information processing. The generally applicable approach is to decompose the observables into weighted sum…

cond-mat.mes-hall2022★ 9 cited

Impurity Knight shift in quantum dot Josephson junctions

Luka Pavešić, Marta Pita-Vidal, Arno Bargerbos +1

Spectroscopy of a Josephson junction device with an embedded quantum dot reveals the presence of a contribution to level splitting in external magnetic field that is proportional t…

quant-ph2022★ 28 cited

Interaction graph-based characterization of quantum benchmarks for improving quantum circuit mapping techniques

Medina Bandić, Carmen G. Almudever, Sebastian Feld

To execute quantum circuits on a quantum processor, they must be modified to meet the physical constraints of the quantum device. This process, called quantum circuit mapping, resu…

quant-ph2022★ 19 cited

Generalized Belief Propagation Algorithms for Decoding of Surface Codes

Josias Old, Manuel Rispler

Belief propagation (BP) is well-known as a low complexity decoding algorithm with a strong performance for important classes of quantum error correcting codes, e.g. notably for the…

cond-mat.mes-hall2022★ 33 cited

Electrical control of uniformity in quantum dot devices

Marcel Meyer, Corentin Déprez, Timo R. van Abswoude +9

Highly uniform quantum systems are essential for the practical implementation of scalable quantum processors. While quantum dot spin qubits based on semiconductor technology are a…

cond-mat.mes-hall2022★ 9 cited

Impact of junction length on supercurrent resilience against magnetic field in InSb-Al nanowire Josephson junctions

Vukan Levajac, Grzegorz P. Mazur, Nick van Loo +7

Semiconducting nanowire Josephson junctions represent an attractive platform to investigate the anomalous Josephson effect and detect topological superconductivity by studying Jose…

cond-mat.supr-con2022★ 34 cited

Electrostatic control of the proximity effect in the bulk of semiconductor-superconductor hybrids

N. van Loo, G. P. Mazur, T. Dvir +11

The proximity effect in semiconductor-superconductor nanowires is expected to generate an induced gap in the semiconductor. The magnitude of this induced gap, together with the sem…

quant-ph2022★ 32 cited

Entanglement distribution with minimal memory requirements using time-bin photonic qudits

Yunzhe Zheng, Hemant Sharma, Johannes Borregaard

Generating multiple entangled qubit pairs between distributed nodes is a prerequisite for a future quantum internet. To achieve a practicable generation rate, standard protocols ba…

quant-ph2022★ 18 cited

Optimizing sparse fermionic Hamiltonians

Yaroslav Herasymenko, Maarten Stroeks, Jonas Helsen +1

We consider the problem of approximating the ground state energy of a fermionic Hamiltonian using a Gaussian state. In sharp contrast to the dense case, we prove that strictly -…

cond-mat.mes-hall2022★ 56 cited

Triplet correlations in Cooper pair splitters realized in a two-dimensional electron gas

Qingzhen Wang, Sebastiaan L. D. ten Haaf, Ivan Kulesh +4

Cooper pairs occupy the ground state of superconductors and are typically composed of maximally entangled electrons with opposite spin. In order to study the spin and entanglement…

quant-ph2022★ 4 cited

Quadratic Zeeman Spectral Diffusion of Thulium Ion Population in a Yttrium Gallium Garnet Crystal

Jacob H. Davidson, Antariksha Das, Nir Alfasi +3

The creation of well understood structures using spectral hole burning is an important task in the use of technologies based on rare earth ion doped crystals. We apply a series of…

quant-ph2022★ 32 cited

Long-Range QKD without Trusted Nodes is Not Possible with Current Technology

Bruno Huttner, Romain Alléaume, Eleni Diamanti +11

A recently published patent (https://www.ipo.gov.uk/p-ipsum/Case/PublicationNumber/GB2590064) has claimed the development of a novel quantum key distribution protocol purporting to…

cond-mat.mes-hall2022★ 81 cited

Reducing charge noise in quantum dots by using thin silicon quantum wells

B. Paquelet Wuetz, D. Degli Esposti, A. M. J. Zwerver +7

Charge noise in the host semiconductor degrades the performance of spin-qubits and poses an obstacle to control large quantum processors. However, it is challenging to engineer the…

quant-ph2022★ 34 cited

Coherent control of a nuclear spin via interactions with a rare-earth ion in the solid-state

Mehmet T. Uysal, Mouktik Raha, Songtao Chen +6

Individually addressed Er ions in solid-state hosts are promising resources for quantum repeaters, because of their direct emission in the telecom band and compatibility wit…

cond-mat.mes-hall2022★ 57 cited

Shuttling an electron spin through a silicon quantum dot array

A. M. J. Zwerver, S. V. Amitonov, S. L. de Snoo +5

Coherent links between qubits separated by tens of micrometers are expected to facilitate scalable quantum computing architectures for spin qubits in electrically-defined quantum d…

cond-mat.mes-hall2022★ 51 cited

Spectroscopy of spin-split Andreev levels in a quantum dot with superconducting leads

Arno Bargerbos, Marta Pita-Vidal, Rok Žitko +9

We use a hybrid superconductor-semiconductor transmon device to perform spectroscopy of a quantum dot Josephson junction tuned to be in a spin-1/2 ground state with an unpaired qua…

cond-mat.mes-hall2022★ 7 cited

Pfaffian invariant identifies magnetic obstructed atomic insulators

Isidora Araya Day, Anastasiia Varentcova, Daniel Varjas +1

We derive a topological invariant that extends beyond symmetry eigenvalues and Wilson loops and classifies two-dimensional insulators with a symmet…

quant-ph2022★ 129 cited

Direct manipulation of a superconducting spin qubit strongly coupled to a transmon qubit

Marta Pita-Vidal, Arno Bargerbos, Rok Žitko +9

Spin qubits in semiconductors are currently one of the most promising architectures for quantum computing. However, they face challenges in realizing multi-qubit interactions over…

quant-ph2022★ 34 cited

Probing resonating valence bonds on a programmable germanium quantum simulator

Chien-An Wang, Corentin Déprez, Hanifa Tidjani +5

Simulations using highly tunable quantum systems may enable investigations of condensed matter systems beyond the capabilities of classical computers. Quantum dots and donors in se…

cond-mat.mes-hall2022★ 24 cited

Microwave spectroscopy of interacting Andreev spins

J. J. Wesdorp, F. J. Matute-Caňadas, A. Vaartjes +13

Andreev bound states are fermionic states localized in weak links between superconductors which can be occupied with spinful quasiparticles. Microwave experiments using superconduc…