Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,008 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Leveraging off-the-shelf silicon chips for quantum computing
J. Michniewicz, M. Kim·Jun 5, 2024
There is a growing demand for quantum computing across various sectors, including finance, materials, and studying chemical reactions. A promising implementation involves semiconductor qubits utilizing quantum dots within transistors. While academic ...
A quantum neural network-based approach to power quality disturbances detection and recognition
Guo-Dong Li, Haibin He, Yue Li +4 more·Jun 5, 2024
As an emerging technology force, quantum algorithms have shown great potential and unique advantages in many fields of application. Power quality disturbances (PQDs) affect the security and stability of the power system, which may lead to equipment d...
Approximating dynamical correlation functions with constant depth quantum circuits
Reinis Irmejs, R. A. Santos·Jun 5, 2024
One of the most important quantities characterizing the microscopic properties of quantum systems are dynamical correlation functions. These correlations are obtained by time-evolving a perturbation of an eigenstate of the system, typically the groun...
Noise-adapted qudit codes for amplitude-damping noise
Sourav Dutta, Debjyoti Biswas, Prabha Mandayam·Jun 4, 2024
Quantum error correction (QEC) plays a critical role in preventing information loss in quantum systems and provides a framework for reliable quantum computation. Identifying quantum codes with nice code parameters for physically motivated noise model...
Demonstration of Two-Dimensional Connectivity for a Scalable Error-Corrected Ion-Trap Quantum Processor Architecture
Marco Valentini, M. Mourik, Friederike Butt +11 more·Jun 4, 2024
A major hurdle for building a large-scale quantum computer is increasing the number of qubits while maintaining connectivity between them. In trapped-ion devices, this connectivity can be achieved by moving subregisters consisting of a few ions acros...
Generalized Cycle Benchmarking Algorithm for Characterizing Midcircuit Measurements
Zhihan Zhang, Senrui Chen, Yunchao Liu +1 more·Jun 4, 2024
Midcircuit measurements (MCMs) are crucial ingredients in the development of fault-tolerant quantum computation. While there have been rapid experimental progresses in realizing MCMs, a systematic method for characterizing noisy MCMs is still under e...
Snowflake: A Distributed Streaming Decoder
Tim Chan·Jun 3, 2024
We design Snowflake, a quantum error correction decoder that, for the surface code under circuit-level noise, is roughly 25% more accurate than the Union-Find decoder, with a better mean runtime scaling: subquadratic as opposed to cubic in the code d...
Incompressible Navier-Stokes solve on noisy quantum hardware via a hybrid quantum-classical scheme
Zhixin Song, Robert Deaton, Bryan Gard +1 more·Jun 1, 2024
Partial differential equation solvers are required to solve the Navier-Stokes equations for fluid flow. Recently, algorithms have been proposed to simulate fluid dynamics on quantum computers. Fault-tolerant quantum devices might enable exponential s...
Improving the Fidelity of CNOT Circuits on NISQ Hardware
Dohun Kim, Minyoung Kim, Sarah Meng Li +1 more·May 30, 2024
We introduce an improved CNOT synthesis algorithm that considers nearest-neighbour interactions and CNOT gate error rates in noisy intermediate-scale quantum (NISQ) hardware. Compared to IBM's Qiskit compiler, it improves the fidelity of a synthesize...
Quantum encoder for fixed-Hamming-weight subspaces
Renato M S Farias, Thiago O. Maciel, Giancarlo Camilo +3 more·May 30, 2024
We present an exact $n$-qubit computational-basis amplitude encoder of real- or complex-valued data vectors of $d=\binom{n}{k}$ components into a subspace of fixed Hamming weight $k$. This represents a polynomial space compression of degree $k$. The ...
Adaptable Weighted Token Swapping Algorithm for Optimal Multi-Qubit Pathfinding
Gary J Mooney·May 29, 2024
Quantum computing promises breakthroughs in simulating and solving complex, classically intractable problems. However, current noisy intermediate-scale quantum (NISQ) devices are relatively small and error-prone, prohibiting large-scale computations....
A quantum implementation of high-order power method for estimating geometric entanglement of pure states
Andrii Semenov, Niall Murphy, Simone Patscheider +2 more·May 29, 2024
Entanglement is one of the fundamental properties of a quantum state and is a crucial differentiator between classical and quantum computation. There are many ways to define entanglement and its measure, depending on the problem or application under ...
Decoherence of solid-state spin qubits: a computational perspective
M. Onizhuk, Giulia Galli·May 28, 2024
The usefulness of solid-state spins in quantum technologies depends on how long they can remain in a coherent superposition of quantum states. This Colloquium discusses how first-principles simulations can predict spin dynamics for different types of...
Efficient Quantum Circuit Encoding of Object Information in 2D Ray Casting
Seungjae Lee, Suhui Jeong, Jiwon Seo·May 25, 2024
Quantum computing holds the potential to solve problems that are practically unsolvable by classical computers due to its ability to significantly reduce time complexity. We aim to harness this potential to enhance ray casting, a pivotal technique in...
Hybrid Quantum Downsampling Networks
Yifeng Peng, Xinyi Li, Zhiding Liang +1 more·May 25, 2024
Classical max pooling plays a crucial role in reducing data dimensionality among various well-known deep learning models, yet it often leads to the loss of vital information. We proposed a novel hybrid quantum downsampling module (HQD), which is a no...
Qsco: A Quantum Scoring Module for Open-set Supervised Anomaly Detection
Yifeng Peng, Xinyi Li, Zhiding Liang +1 more·May 25, 2024
Open set anomaly detection (OSAD) is a crucial task that aims to identify abnormal patterns or behaviors in data sets, especially when the anomalies observed during training do not represent all possible classes of anomalies. The recent advances in q...
Error crafting in mixed quantum gate synthesis
Nobuyuki Yoshioka, Seiseki Akibue, Hayata Morisaki +2 more·May 24, 2024
In fault-tolerant quantum computing, logical errors in unitary gate synthesis are comparable to the noise inherent in the gates themselves. While mixed synthesis can suppress such coherent errors quadratically, there is no clear understanding of its ...
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 ...
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...
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...