Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,891
This Month
551
Today
0
Research Volume
13,853 papers in 12 months (-10% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Faster and Better Quantum Software Testing through Specification Reduction and Projective Measurements
Noah Oldfield, Christoph Laaber, T. Yue +1 more·May 24, 2024
Quantum computing (QC) promises polynomial and exponential speedups in many domains, such as unstructured search and prime number factoring. However, quantum programs yield probabilistic outputs from exponentially growing distributions and are vulner...
Synthetic High Angular Momentum Spin Dynamics in a Microwave Oscillator
Saswata Roy, Alen Senanian, Christopher S. Wang +10 more·May 24, 2024
Spins and oscillators are foundational to much of physics and applied sciences. For quantum information, a spin 1/2 exemplifies the most basic unit, a qubit. High angular momentum spins (HAMSs) and harmonic oscillators provide multilevel manifolds wh...
Parametrization and optimizability of pulse-level variational quantum eigensolvers
Kyle Sherbert, Hisham Amer, S. Economou +2 more·May 24, 2024
In conventional variational quantum eigensolvers (VQEs), trial states are prepared by applying series of parameterized gates to a reference state, with the gate parameters being varied to minimize the energy of the target system. Recognizing that the...
Digitized counterdiabatic quantum algorithms for logistics scheduling
Archismita Dalal, I. Montalban, N. N. Hegade +7 more·May 24, 2024
We study a job shop scheduling problem for an automatized robot in a high-throughput laboratory and a travelling salesperson problem with recently proposed digitized counterdiabatic quantum optimization (DCQO)algorithms. In DCQO, we find the solution...
Unsupervised Deep Neural Network Approach To Solve Bosonic Systems
Avishek Singh, NIRMAL K. Ganguli·May 24, 2024
The simulation of quantum many-body systems poses a significant challenge in physics due to the exponential scaling of Hilbert space with the number of particles. Traditional methods often struggle with large system sizes and frustrated lattices. In ...
Entanglement area law and Lieb-Schultz-Mattis theorem in long-range interacting systems, and symmetry-enforced long-range entanglement
Ruizhi Liu, Jinmin Yi, Shiyu Zhou +1 more·May 23, 2024
We establish multiple interrelated, fundamental results in quantum many-body systems that can have long-range interactions. For a sufficiently long quantum spin chain, we first show that if the multi-spin interactions in the Hamiltonian decay fast en...
The formation of entangled Schrödinger cat-like states in the process of spontaneous parametric down-conversion
Ranjit Singh, Alexander E. Teretenkov·May 23, 2024
We investigate entangled Schrödinger cat-like states (SCLSs) in degenerate and non-degenerate spontaneous parametric down-conversion (SPDC) with a fully quantized, depleted pump. Our fully quantum treatment, visualized via Wigner functions, reveals n...
Dynamic, symmetry-preserving, and hardware-adaptable circuits for quantum computing many-body states and correlators of the Anderson impurity model
Eric B. Jones, Cody James Winkleblack, Colin Campbell +5 more·May 23, 2024
We present a hardware-reconfigurable ansatz on Nq-qubits for the variational preparation of many-body states of the Anderson impurity model (AIM) with Nimp+Nbath=Nq/2 sites, which conserves total charge and spin z component within each variational se...
Analog counterdiabatic quantum computing
Qi Zhang, N. N. Hegade, Alejandro Gomez Cadavid +7 more·May 23, 2024
Harnessing the analog capacity of quantum processors at the algorithmic level is key to solving computationally hard problems. Neutral atoms offer analog capabilities supporting hundreds of qubits, but state-of-the-art adiabatic protocol struggles wi...
Qubit-Efficient Variational Quantum Algorithms for Image Segmentation
Supreeth Mysore Venkatesh, A. Macaluso, M. Nuske +2 more·May 23, 2024
Quantum computing is expected to transform a range of computational tasks beyond the reach of classical algorithms. In this work, we examine the application of variational quantum algorithms (VQAs) for unsupervised image segmentation to partition ima...
Compilation for Dynamically Field-Programmable Qubit Arrays with Efficient and Provably Near-Optimal Scheduling
Daniel Bochen Tan, Wan-Hsuan Lin, Jason Cong·May 23, 2024
Dynamically field-programmable qubit arrays based on neutral atoms feature high fidelity and highly parallel gates for quantum computing. However, it is challenging for compilers to fully leverage the novel flexibility offered by such hardware while ...
A Quantum Speed-Up for Approximating the Top Eigenvectors of a Matrix
Yanlin Chen, Andr'as Gily'en, Ronald de Wolf·May 23, 2024
Finding a good approximation of the top eigenvector of a given $d\times d$ matrix $A$ is a basic and important computational problem, with many applications. We give two different quantum algorithms that, given query access to the entries of a Hermit...
A high-level comparison of state-of-the-art quantum algorithms for breaking asymmetric cryptography
Martin Ekerå, Joel Gärtner·May 23, 2024
We provide a high-level cost comparison between Regev's quantum algorithm with Ekerå–Gärtner's extensions on the one hand, and existing state-of-the-art quantum algorithms for factoring and computing discrete logarithms on the other. This when target...
Quantum amplitude estimation from classical signal processing
Farrokh Labib, B. D. Clader, N. Stamatopoulos +1 more·May 23, 2024
We demonstrate that the problem of amplitude estimation, a core subroutine used in many quantum algorithms, can be mapped directly to a problem in signal processing called direction of arrival (DOA) estimation. The DOA task is to determine the direct...
Bayesian optimisation with improved information sharing for the variational quantum eigensolver
Milena Rohrs, A. Bochkarev, A. C. M. F. Itwm +1 more·May 23, 2024
This work presents a detailed empirical analysis of Bayesian optimisation with information sharing (BOIS) for the variational quantum eigensolver (VQE). The method is applied to computing the potential energy surfaces (PES) of the hydrogen and water ...
Scalable embedding of parity constraints in quantum annealing hardware
Michele Cattelan, Jemma Bennett, S. Yarkoni +1 more·May 23, 2024
One of the main bottlenecks in solving combinatorial optimization problems with quantum annealers is the qubit connectivity in the hardware. A possible solution for larger connectivty is minor embedding. This techniques makes the geometrical properti...
Quantum-assisted rendezvous on graphs: explicit algorithms and quantum computer simulations
J. Tucker, P. Strange, P. Mironowicz +1 more·May 23, 2024
We study quantum advantage in one-step rendezvous games on simple graphs analytically, numerically, and using noisy intermediate-scale quantum (NISQ) processors. Our protocols realise the recently discovered (Mironowicz 2023 New J. Phys. 25 013023) o...
Adaptive measurement strategy for noisy quantum amplitude estimation with variational quantum circuits
Kohei Oshio, Yohichi Suzuki, Kaito Wada +3 more·May 23, 2024
In quantum computation, amplitude estimation is a fundamental subroutine that is utilized in various quantum algorithms. A general important task of such estimation problems is to characterize the estimation lower bound, which is referred to as quant...
Qudit-Generalization of the Qubit Echo and Its Application to a Qutrit-Based Toffoli Gate
Y. Iiyama, Wonho Jang, Naoki Kanazawa +3 more·May 23, 2024
The fidelity of certain gates on noisy quantum computers may be improved when they are implemented using more than two levels of the involved transmons. The main impediments to achieving this potential are the dynamic gate phase errors that cannot be...
Bias-field digitized counterdiabatic quantum optimization
Alejandro Gomez Cadavid, Archismita Dalal, Anton Simen +2 more·May 22, 2024
We introduce a method for solving combinatorial optimization problems on digital quantum computers, where we incorporate auxiliary counterdiabatic (CD) terms into the adiabatic Hamiltonian, while integrating bias terms derived from an iterative digit...