Papers
Live trends in quantum computing research, updated daily from arXiv.
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31,204
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Research Volume
15,383 papers in 12 months (-8% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Enhancing Dispersive Readout of Superconducting Qubits through Dynamic Control of the Dispersive Shift: Experiment and Theory
François Swiadek, R. Shillito, P. Magnard +9 more·Jul 15, 2023
The performance of a wide range of quantum computing algorithms and protocols depends critically on the fidelity and speed of the employed qubit readout. Examples include gate sequences benefiting from midcircuit real-time measurement-based feedback,...
Accelerating variational quantum Monte Carlo using the variational quantum eigensolver
A. Montanaro, Stasja Stanisic·Jul 15, 2023
Variational Monte Carlo (VMC) methods are used to sample classically from distributions corresponding to quantum states which have an efficient classical description. VMC methods are based on performing a number of steps of a Markov chain starting wi...
Improved Single-Shot Qubit Readout Using Twin rf-SET Charge Correlations
S. Serrano, M. Feng, W. H. Lim +11 more·Jul 15, 2023
High fidelity qubit readout is critical in order to obtain the thresholds needed to implement quantum error correction protocols and achieve fault-tolerant quantum computing. Large-scale silicon qubit devices will have densely-packed arrays of quantu...
Fast design and scaling of multi-qubit gates in large-scale trapped-ion quantum computers
Lee Peleg, David Schwerdt, Jonathan Nemirovsky +5 more·Jul 14, 2023
Quantum computers based on crystals of trapped ions are a prominent technology for quantum computation. A unique feature of trapped ions is their long-range Coulomb interactions, which can be exploited to realize large-scale multiqubit entanglement g...
Monte Carlo graph search for quantum circuit optimization
B. Rosenhahn, T. Osborne·Jul 14, 2023
The building blocks of quantum algorithms and software are quantum gates, with the appropriate combination of quantum gates leading to a desired quantum circuit. Deep expert knowledge is necessary to discover effective combinations of quantum gates t...
The resource theory of tensor networks
M. Christandl, Vladimir Lysikov, Vincent Steffan +2 more·Jul 14, 2023
Tensor networks provide succinct representations of quantum many-body states and are an important computational tool for strongly correlated quantum systems. Their expressive and computational power is characterized by an underlying entanglement stru...
Higher-Order Topological Kernels via Quantum Computation
Massimiliano Incudini, F. Martini, A. D. Pierro·Jul 14, 2023
Topological data analysis (TDA) has emerged as a powerful tool for extracting meaningful insights from complex data. TDA enhances the analysis of objects by embedding them into a simplicial complex and extracting useful global properties such as the ...
Comparative Study of Variations in Quantum Approximate Optimization Algorithms for the Traveling Salesman Problem
W. Qian, R. Basili, M. Eshaghian-Wilner +3 more·Jul 14, 2023
The traveling salesman problem (TSP) is one of the most often-used NP-hard problems in computer science to study the effectiveness of computing models and hardware platforms. In this regard, it is also heavily used as a vehicle to study the feasibili...
Autoparametric Resonance Extending the Bit-Flip Time of a Cat Qubit up to 0.3 s
A. Marquet, Antoine Essig, Joachim Cohen +9 more·Jul 13, 2023
Cat qubits, for which logical $|0\rangle$ and $|1\rangle$ are coherent states $|\pm\alpha\rangle$ of a harmonic mode, offer a promising route towards quantum error correction. Using dissipation to our advantage so that photon pairs of the harmonic mo...
Impact of Unreliable Devices on Stability of Quantum Computations
S. Dasgupta, T. Humble·Jul 13, 2023
Noisy intermediate-scale quantum (NISQ) devices are valuable platforms for testing the tenets of quantum computing, but these devices are susceptible to errors arising from de-coherence, leakage, cross-talk, and other sources of noise. This raises co...
QDoor: Exploiting Approximate Synthesis for Backdoor Attacks in Quantum Neural Networks
Cheng Chu, Fan Chen, P. Richerme +1 more·Jul 13, 2023
Quantum neural networks (QNNs) succeed in object recognition, natural language processing, and financial analysis. To maximize the accuracy of a QNN on a Noisy Intermediate Scale Quantum (NISQ) computer, approximate synthesis modifies the QNN circuit...
Error mitigation, optimization, and extrapolation on a trapped-ion testbed
Oliver G. Maupin, Ashlyn D. Burch, B. Ruzic +8 more·Jul 13, 2023
Current noisy intermediate-scale quantum (NISQ) trapped-ion devices are subject to errors around 1% per gate for two-qubit gates. These errors significantly impact the accuracy of calculations if left unchecked. A form of error mitigation called Rich...
Spin-Flip Unitary Coupled Cluster Method: Toward Accurate Description of Strong Electron Correlation on Quantum Computers.
Fabijan Pavošević, I. Tavernelli, A. Rubio·Jul 13, 2023
Quantum computers have emerged as a promising platform to simulate strong electron correlation that is crucial to catalysis and photochemistry. However, owing to the choice of a trial wave function employed in the variational quantum eigensolver (VQE...
Faster-than-Clifford simulations of entanglement purification circuits and their full-stack optimization
Vaishnavi L. Addala, Shu Ge, Stefan Krastanov·Jul 12, 2023
Generating quantum entanglement is plagued by decoherence. Distillation and error-correction are employed against such noise, but designing a good distillation circuit, especially on today’s imperfect hardware, is challenging. We develop a simulation...
New three- and four-dimensional toric and burst error-correcting quantum codes
C. C. Trinca, R. Palazzo, R. Watanabe +3 more·Jul 12, 2023
Ongoing research and experiments have enabled quantum memory to realize the storage of qubits. On the other hand, interleaving techniques are used to deal with burst of errors. Effective interleaving techniques for combating burst of errors by using ...
Hybrid discrete-continuous compilation of trapped-ion quantum circuits with deep reinforcement learning
Francesco Preti, Michael Schilling, S. Jerbi +4 more·Jul 12, 2023
Shortening quantum circuits is crucial to reducing the destructive effect of environmental decoherence and enabling useful algorithms. Here, we demonstrate an improvement in such compilation tasks via a combination of using hybrid discrete-continuous...
From Vlasov-Poisson to Schrödinger-Poisson: Dark matter simulation with a quantum variational time evolution algorithm
Luca Cappelli, F. Tacchino, G. Murante +2 more·Jul 12, 2023
Cosmological simulations describing the evolution of density perturbations of a self-gravitating collisionless Dark Matter (DM) fluid in an expanding background, provide a powerful tool to follow the formation of cosmic structures over wide dynamic r...
Universal Quantum Walk Control Plane for Quantum Networks
M. G. Andrade, Nitish K. Panigrahy, W. Dai +2 more·Jul 12, 2023
Quantum networks are complex systems formed by the interaction among quantum processors through quantum channels. Analogous to classical computer networks, quantum networks allow for the distribution of quantum operations among quantum processors. In...
GRAPE optimization for open quantum systems with time-dependent decoherence rates driven by coherent and incoherent controls
V. Petruhanov, A. Pechen·Jul 11, 2023
The GRadient Ascent Pulse Engineering (GRAPE) method is widely used for optimization in quantum control. GRAPE is gradient search method based on exact expressions for gradient of the control objective. It has been applied to various coherently contr...
Towards quantum-enabled cell-centric therapeutics
S. Basu, Jannis Born, Aritra Bose +28 more·Jul 11, 2023
In recent years, there has been tremendous progress in the development of quantum computing hardware, algorithms and services leading to the expectation that in the near future quantum computers will be capable of performing simulations for natural s...