Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,007 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
Robust Quantum Gates against Correlated Noise in Integrated Quantum Chips.
Kangyuan Yi, Yong-Ju Hai, Kai Luo +9 more·Jan 3, 2024
As quantum circuits become more integrated and complex, additional error sources that were previously insignificant start to emerge. Consequently, the fidelity of quantum gates benchmarked under pristine conditions falls short of predicting their per...
Differentiable Quantum Architecture Search For Job Shop Scheduling Problem
Yize Sun, Jiarui Liu, Yunpu Ma +1 more·Jan 2, 2024
The Job shop scheduling problem (JSSP) plays a pivotal role in industrial applications, such as signal processing (SP) and steel manufacturing, involving sequencing machines and jobs to maximize scheduling efficiency. Before, JSSP was solved using ma...
Quantum State Preparation Using an Exact CNOT Synthesis Formulation
Hanyu Wang, Daniel Bochen Tan, Jason Cong +1 more·Jan 2, 2024
Minimizing the use of CNOT gates in quantum state preparation is a crucial step in quantum compilation, as they introduce coupling constraints and more noise than single-qubit gates. Reducing the number of CNOT gates can lead to more efficient and ac...
Decoherence in exchange-coupled quantum spin-qubit systems: Impact of multiqubit interactions and geometric connectivity
Quan Fu, Jiahao Wu, Xin Wang·Jan 1, 2024
We investigate the impact of different connectivities on the decoherence time in quantum systems under quasi-static Heisenberg noise. We considered three types of elementary units, including node, stick and triangle and connect them into ring, chain,...
Two quantum algorithms for solving the one-dimensional advection-diffusion equation
Julia Ingelmann, Sachin S. Bharadwaj, Philip R. Pfeffer +2 more·Dec 30, 2023
Two quantum algorithms are presented for the numerical solution of a linear one-dimensional advection-diffusion equation with periodic boundary conditions. Their accuracy and performance with increasing qubit number are compared point-by-point with e...
Enhancing the Yield of Bucket Brigade Quantum Random Access Memory using Redundancy Repair
Dongmin Kim, Sengthai Heng, Sanghyeon Lee +1 more·Dec 29, 2023
Quantum Random Access Memory (qRAM) is an essential computing element for running oracle-based quantum algorithms. qRAM exploits quantum superposition to access all data stored in the memory cells simultaneously and guarantees the superior performanc...
Extracting error thresholds through the framework of approximate quantum error correction condition
Yuan-Yuan Zhao, Dong E. Liu·Dec 28, 2023
The robustness of quantum memory against physical noises is measured by two methods: the exact and approximate quantum error correction (QEC) conditions for error recoverability and the decoder-dependent error threshold which assesses if the logical ...
Evolutionary Reduction of the Laser Noise Impact on Quantum Gates
Tam'si Ley, A. Leonteva, Johannes Schachenmayer +1 more·Dec 27, 2023
As the size of quantum hardware progressively increases, the conjectured computational advantages of quantum technologies tend to be threatened by noise, which randomly corrupts the design of quantum logical gates. Several methods already exist to re...
Overcoming the Coherence Time Barrier in Quantum Machine Learning on Temporal Data
Fangjun Hu, Saeed A. Khan, Nicholas T. Bronn +4 more·Dec 26, 2023
Practical implementation of many quantum algorithms known today is limited by the coherence time of the executing quantum hardware and quantum sampling noise. Here we present a machine learning algorithm, NISQRC, for qubit-based quantum systems that ...
Classical capacity of quantum non-Gaussian attenuator and amplifier channels
Zacharie Van Herstraeten, Saikat Guha, Nicolas J. Cerf·Dec 25, 2023
We consider a quantum bosonic channel that couples the input mode via a beam splitter or two-mode squeezer to an environmental mode that is prepared in an arbitrary state. We investigate the classical capacity of this channel, which we call a non-Gau...
Quantum Algorithm for Signal Denoising
Sayantan Dutta, Adrian Basarab, Denis Kouamé +1 more·Dec 24, 2023
This letter presents a novel quantum algorithm for signal denoising, which performs a thresholding in the frequency domain through amplitude amplification and using an adaptive threshold determined by local mean values. The proposed algorithm is able...
Tuning Quantum Computing Privacy through Quantum Error Correction
Hui Zhong, Keyi Ju, Manojna Sistla +4 more·Dec 22, 2023
Quantum computing is a promising paradigm for efficiently solving large and high-complexity problems. However, ensuring privacy within this quantum computing necessitates innovative approaches. Existing research has introduced the concept of quantum ...
Estimation of Electrostatic Interaction Energies on a Trapped-Ion Quantum Computer
Pauline J. Ollitrault, Matthias Loipersberger, Robert M. Parrish +12 more·Dec 22, 2023
We present the first hardware implementation of electrostatic interaction energies by using a trapped-ion quantum computer. As test system for our computation, we focus on the reduction of NO to N2O catalyzed by a nitric oxide reductase (NOR). The qu...
A quantum computing concept for 1-D elastic wave simulation with exponential speedup
Malte Schade, Cyrill Boesch, V. Hapla +1 more·Dec 22, 2023
Quantum computing has attracted considerable attention in recent years because it promises speedups that conventional supercomputers cannot offer, at least for some applications. Though existing quantum computers are, in most cases, still too small...
Quantum computing with error mitigation for data-driven computational homogenization
Zengtao Kuang, Yongchun Xu, Qun Huang +3 more·Dec 22, 2023
As a crossover frontier of physics and mechanics, quantum computing is showing its great potential in computational mechanics. However, quantum hardware noise remains a critical barrier to achieving accurate simulation results due to the limitation o...
A complete continuous-variable quantum computation architecture based on the 2D spatiotemporal cluster state
Peilin Du, Jing Zhang, Tiancai Zhang +2 more·Dec 21, 2023
Continuous-variable measurement-based quantum computation, which requires deterministically generated large-scale cluster states, is a promising candidate for practical, scalable, universal, and fault-tolerant quantum computation. In this work, based...
Occupation-number quantum-subspace-expansion approach to computing the single-particle Green function: An opportunity for noise filtering
B. Gauthier, P. Rosenberg, A. Foley +1 more·Dec 21, 2023
We introduce a hybrid quantum-classical algorithm to compute the Green function for strongly correlated electrons on noisy intermediate-scale quantum (NISQ) devices. The technique consists in the construction of a non-orthogonal excitation basis comp...
Fault-tolerant quantum architectures based on erasure qubits
Shouzhen Gu, A. Retzker, Aleksander Kubica·Dec 21, 2023
The overhead of quantum error correction (QEC) poses a major bottleneck for realizing fault-tolerant computation. To reduce this overhead, we exploit the idea of erasure qubits, relying on an efficient conversion of the dominant noise into erasures a...
Investigating Techniques to Optimise the Layout of Turbines in a Windfarm Using a Quantum Computer
James Hancock, Matthew J. Craven, C. McNeile +1 more·Dec 20, 2023
This paper investigates Windfarm Layout Optimization (WFLO), where we formulate turbine placement considering wake effects as a Quadratic Unconstrained Binary Optimization (QUBO) problem. Wind energy plays a critical role in the transition toward sus...
First-order phase transition of the Schwinger model with a quantum computer
Takis Angelides, Pranay Naredi, Arianna Crippa +4 more·Dec 20, 2023
We explore the first-order phase transition in the lattice Schwinger model in the presence of a topological θ-term by means of the variational quantum eigensolver (VQE). Using two different fermion discretizations, Wilson and staggered fermions, we d...