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 algorithms for the simulation of QCD processes in the perturbative regime
Herschel A. Chawdhry, M. Pellen·Dec 30, 2024
Theoretical predictions for high-energy collision processes at particle colliders, such as the Large Hadron Collider (LHC), rely on calculations in perturbative Quantum Chromodynamics (QCD), which are often computationally challenging. In these confe...
Active Learning with Variational Quantum Circuits for Quantum Process Tomography
Jiaqi Yang, Xiaohua Xu, Wei Xie·Dec 30, 2024
Quantum process tomography (QPT) is a fundamental tool for fully characterizing quantum systems. It relies on querying a set of quantum states as input to the quantum process. Previous QPT methods typically employ a straightforward strategy for rando...
Simple Quantum Coins Enable Pretty Good State Transfer on Every Hypercube
Hanmeng Zhan·Dec 30, 2024
We consider pretty good state transfer in coined quantum walks between antipodal vertices on the hypercube [Formula: see text]. When [Formula: see text] is a prime, this was proven to occur in the arc-reversal walk with Grover coins. We extend this r...
GroverGPT: A Large Language Model with 8 Billion Parameters for Quantum Searching
Haoran Wang, Pingzhi Li, Min Chen +3 more·Dec 30, 2024
Quantum computing is an exciting non-Von Neumann paradigm, offering provable speedups over classical computing for specific problems. However, the practical limits of classical simulatability for quantum circuits remain unclear, especially with curre...
Quantum error correction near the coding theoretical bound
Daiki Komoto, Kenta Kasai·Dec 30, 2024
Recent progress in quantum computing has enabled systems with tens of reliable logical qubits, built from thousands of noisy physical qubits1. However, many impactful applications demand quantum computations with millions of logical qubits2, necessit...
Lindbladian Simulation with Logarithmic Precision Scaling via Two Ancillas.
Wenjun Yu, Xiaogang Li, Qi Zhao +1 more·Dec 30, 2024
Quantum computers promise efficient simulation of Lindbladian dynamics in open quantum systems, with broad applications in quantum chemistry, quantum error correction, and quantum state preparation. However, simulating open systems is more challengin...
The surface code beyond Pauli channels: Logical noise coherence, information-theoretic measures, and errorfield-double phenomenology
Jan Behrends, Benjamin B'eri·Dec 30, 2024
We consider the surface code under errors featuring both coherent and incoherent components and study the coherence of the corresponding logical noise channel and how this impacts information-theoretic measures of code performance, namely coherent in...
Community detection by simulated bifurcation
Wei Li, Yi-Lun Du, Nan Su +3 more·Dec 30, 2024
Community detection, also known as graph partitioning, is a well-known NP-hard combinatorial optimization problem with applications in diverse fields such as complex network theory, transportation, and smart power grids. The problem's solution space ...
Enhanced Two-Way Teleportation of Entangled States with Six-Qubit Cluster State
R. Vedhanayagi, Soubhik De, A. BasherrudinMahmudAhmed +1 more·Dec 30, 2024
This work presents a two-way teleportation protocol for the transfer of an unknown two-qubit quantum state between two parties Alice and Bob, utilizing a six-qubit cluster state. This bidirectional exchange is achieved by performing Bell measurements...
Quantum Diffusion Model for Quark and Gluon Jet Generation
Mariia Baidachna, Rey Guadarrama, Gopal Ramesh Dahale +6 more·Dec 30, 2024
Diffusion models have demonstrated remarkable success in image generation, but they are computationally intensive and time-consuming to train. In this paper, we introduce a novel diffusion model that benefits from quantum computing techniques in orde...
Efficient estimation and sequential optimization of cost functions in variational quantum algorithms
Muhammad Umer, Eleftherios Mastorakis, D. Angelakis·Dec 30, 2024
Classical optimization is a cornerstone of the success of variational quantum algorithms, which often require determining the derivatives of the cost function relative to variational parameters. The computation of the cost function and its derivative...
Error estimates and higher order Trotter product formulas in Jordan-Banach algebras
Sarah Chehade, Andrea Delgado, Shuzhou Wang +1 more·Dec 29, 2024
In quantum computing, Trotter estimates are critical for enabling efficient simulation of quantum systems and quantum dynamics, help implement complex quantum algorithms, and provide a systematic way to control approximate errors. In this paper, we e...
LSQCA: Resource-Efficient Load/Store Architecture for Limited-Scale Fault-Tolerant Quantum Computing
Takumi Kobori, Yasunari Suzuki, Yosuke Ueno +3 more·Dec 29, 2024
Current fault-tolerant quantum computer (FTQC) architectures utilize several encoding techniques to enable reliable logical operations with restricted qubit connectivity. However, such logical operations demand additional memory overhead to ensure fa...
Artificial Intelligence for Quantum Error Correction: A Comprehensive Review
Zihao Wang, Hao Tang·Dec 29, 2024
Quantum Error Correction (QEC) is the process of detecting and correcting errors in quantum systems, which are prone to decoherence and quantum noise. QEC is crucial for developing stable and highly accurate quantum computing systems, therefore, seve...
A Comparison of HPC based Quantum Computing Simulators using Quantum Volume
Christian Boehme, Lourens van Niekerk, Dhiraj Kumar +3 more·Dec 29, 2024
This paper compares quantum computing simulators running on a single CPU or GPU-based HPC node using the Quantum Volume benchmark commonly proposed for comparing NISQ systems. As simulators do not suffer from noise, the metric used in the comparison ...
Automated Auxiliary Qubit Allocation in High-Level Quantum Programming
E. Rosa, Jerusa Marchi, E. I. Duzzioni +1 more·Dec 29, 2024
We present a method for optimizing quantum circuit compilation by automating the allocation of auxiliary qubits for multi-qubit gate decompositions. This approach is implemented and evaluated within the high-level quantum programming platform Ket. Ou...
Quantum annealing eigensolver as a NISQ era tool for probing strong correlation effects in quantum chemistry
A. Zade, K. Sugisaki, M. Werner +6 more·Dec 29, 2024
The quantum–classical hybrid variational quantum eigensolver (VQE) algorithm is arguably the most popular noisy intermediate-scale quantum (NISQ) era approach to quantum chemistry. We consider the underexplored quantum annealing eigensolver (QAE) alg...
The quantum Kibble-Zurek mechanism: the role of boundary conditions, endpoints and kink types
Jose Soto Garcia, Natalia Chepiga·Dec 28, 2024
Quantum phase transitions are characterised by the universal scaling laws in the critical region surrounding the transitions. This universality is also manifested in the critical real-time dynamics through the quantum Kibble-Zurek mechanism. In recen...
An Addressable and Tunable Module for Donor-based Scalable Silicon Quantum Computing
Shihang Zhang, Yu He, Peihao Huang·Dec 28, 2024
Donor-based spin qubit offers a promising silicon quantum computing route for building large-scale qubit arrays, attributed to its long coherence time and advancements in nanoscale donor placement. However, the state-of-the-art device designs face sc...
Efficient evaluation of optical quantum modules via two-photon high-dimensional interference.
Xiaoqian Zhang, Maolin Luo, Xiaoqi Zhou·Dec 28, 2024
The rapid advancement of quantum information technology has increased the demand for precise testing and calibration of quantum modules, especially in optical quantum circuits where module reliability directly impacts system performance. To address t...