Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum computation of reactions on surfaces using local embedding
Tanvi P. Gujarati, M. Motta, Triet Friedhoff +9 more·Mar 14, 2022
Modeling electronic systems is an important application for quantum computers. In the context of materials science, an important open problem is the computational description of chemical reactions on surfaces. In this work, we outline a workflow to m...
Psitrum: An open source simulator for universal quantum computers
Mohammed Alghadeer, Eid Aldawsari, R. Selvarajan +3 more·Mar 14, 2022
Quantum computing is a radical new paradigm for a technology that is capable to revolutionise information processing. Simulators of universal quantum computer are important for understanding the basic principles and operations of the current noisy in...
Full-stack quantum computing systems in the NISQ era: algorithm-driven and hardware-aware compilation techniques
Medina Bandic, Sebastian Feld, C. G. Almudéver·Mar 14, 2022
The progress in developing quantum hardware with functional quantum processors integrating tens of noisy qubits, together with the availability of near-term quantum algorithms has led to the release of the first quantum computers. These quantum compu...
Demonstrating multi-round subsystem quantum error correction using matching and maximum likelihood decoders
N. Sundaresan, Theodore J. Yoder, Youngseok Kim +7 more·Mar 14, 2022
Quantum error correction offers a promising path for performing high fidelity quantum computations. Although fully fault-tolerant executions of algorithms remain unrealized, recent improvements in control electronics and quantum hardware enable incre...
Snowmass White Paper: Quantum Computing Systems and Software for High-energy Physics Research
T. Humble, Andrea Delgado, R. Pooser +23 more·Mar 14, 2022
Quantum computing offers a new paradigm for advancing high-energy physics research by enabling novel methods for representing and reasoning about fundamental quantum mechanical phenomena. Realizing these ideals will require the development of novel c...
Reducing the cost of energy estimation in the variational quantum eigensolver algorithm with robust amplitude estimation
Peter D. Johnson, Alexander A. Kunitsa, J. Gonthier +5 more·Mar 14, 2022
Quantum chemistry and materials is one of the most promising applications of quantum computing. Yet much work is still to be done in matching industry-relevant problems in these areas with quantum algorithms that can solve them. Most previous efforts...
Ion Coulomb Crystals in Storage Rings for Quantum Information Science
S. Brooks, K. Brown, F. M'eot +29 more·Mar 14, 2022
Quantum information science is a growing field that promises to take computing into a new age of higher performance and larger scale computing as well as being capable of solving problems classical computers are incapable of solving. The outstanding ...
QuFI: a Quantum Fault Injector to Measure the Reliability of Qubits and Quantum Circuits
Daniel Oliveira, Edoardo Giusto, Emanuele Dri +5 more·Mar 14, 2022
Quantum computing is an up-and-coming technology that is expected to revolutionize the computation paradigm in the next few years. Qubits, the primary computing elements of quantum circuits, exploit the quantum physics proprieties to increase the par...
Ancilla-free implementation of generalized measurements for qubits embedded in a qudit space
Laurin E. Fischer, Daniel Miller, F. Tacchino +3 more·Mar 14, 2022
Informationally complete (IC) positive operator-valued measures (POVMs) are generalized quantum measurements that offer advantages over the standard computational basis readout of qubits. For instance, IC-POVMs enable efficient extraction of operator...
Relative State Quantum Logic
Martin Paul Vaughan·Mar 13, 2022
A projective quantum logic in terms of relative states is developed, emphasizing the importance of information transfer between a system under study and its environment. The need for accounting for the historical evolution of system is highlighted an...
Finite-Key Analysis of Quantum Key Distribution with Characterized Devices Using Entropy Accumulation
Ian George, Jie Lin, Thomas van Himbeeck +2 more·Mar 13, 2022
The Entropy Accumulation Theorem (EAT) was introduced to significantly improve the finite-size rates for device-independent quantum information processing tasks such as device-independent quantum key distribution (QKD). A natural question would be wh...
Fast High-Fidelity Single-Shot Readout of Spins in Silicon Using a Single-Electron Box
G. Oakes, V. Ciriano-Tejel, D. Wise +18 more·Mar 13, 2022
Three key metrics for readout systems in quantum processors are measurement speed, fidelity and footprint. Fast high-fidelity readout enables mid-circuit measurements, a necessary feature for many dynamic algorithms and quantum error correction, whil...
Effects of XX-catalysts on quantum annealing spectra with perturbative crossings
Natasha Feinstein, L. Fry-Bouriaux, S. Bose +1 more·Mar 13, 2022
In adiabatic quantum annealing the required run-time to reach a given ground-state fidelity is dictated by the size of the minimum gap that appears between the ground and first excited state in the annealing spectrum. In general the presence of avoid...
Fuzzing+Hardware Performance Counters-Based Detection of Algorithm Subversion Attacks on Postquantum Signature Schemes
Animesh Basak Chowdhury, Anushree Mahapatra, Deepraj Soni +1 more·Mar 13, 2022
NIST is standardizing postquantum cryptography (PQC) algorithms that are resilient to the computational capability of quantum computers. Past works show malicious subversion with cryptographic software algorithm subversion attacks (ASAs) that weaken ...
Comparative study of adaptive variational quantum eigensolvers for multi-orbital impurity models
A. Mukherjee, Noah F. Berthusen, João C. Getelina +2 more·Mar 13, 2022
Hybrid quantum-classical embedding methods for correlated materials simulations provide a path towards potential quantum advantage. However, the required quantum resources arising from the multi-band nature of d and f electron materials remain largel...
Thermal entanglement and quantum coherence of a single electron in a double quantum dot with Rashba interaction
Merynilda Ferreira, Onofre Rojas, M. Rojas·Mar 12, 2022
In this work, we study the thermal quantum coherence and fidelity in a semiconductor double quantum dot. The device consists of a single electron in a double quantum dot with Rashba spin-orbit coupling in the presence of an external magnetic field. I...
New quantum neural network designs
Felix Petitzon·Mar 12, 2022
Quantum computers promise improving machine learning. We investigated the performance of new quantum neural network designs. Quantum neural networks currently employed rely on a feature map to encode the input into a quantum state. This state is then...
The Category of Linear Optical Quantum Computing
P. Mccloud·Mar 11, 2022
This note reviews the model of computation generated by photonic circuits, comprising edges that are traversed by photons in a single time-bin and vertices given by idealised lossless beam splitters and phase shifters. The circuit model is abstracted...
Quantum algorithms for community detection and their empirical run-times
Chris Cade, Marten Folkertsma, I. Niesen +1 more·Mar 11, 2022
We apply recent work~\cite{ourotherpaper} on empirical estimates of quantum speedups to the practical task of community detection in complex networks. We design several quantum variants of a popular classical algorithm -- the \textit{Louvain algorith...
Efficient quantum interpolation of natural data
Sergi Ramos-Calderer·Mar 11, 2022
We present efficient methods to interpolate data with a quantum computer that complement uploading techniques and quantum post-processing. The quantum algorithms are supported by the efficient Quantum Fourier Transform (QFT) and classical signal and imag...