Papers
Live trends in quantum computing research, updated daily from arXiv.
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Quantum Error Mitigation with Attention Graph Transformers for Burgers Equation Solvers on NISQ Hardware
Seyed Mohamad Ali Tousi, Adib Bazgir, Yuwen Zhang +1 more·Dec 29, 2025
We present a hybrid quantum-classical framework augmented with learned error mitigation for solving the viscous Burgers equation on noisy intermediate-scale quantum (NISQ) hardware. Using the Cole-Hopf transformation, the nonlinear Burgers equation i...
Efficient simulation of logical magic state preparation protocols
Samyak Surti, Lucas Daguerre, Isaac H. Kim·Dec 29, 2025
Developing space- and time-efficient logical magic state preparation protocols will likely be an essential step towards building a large-scale fault-tolerant quantum computer. Motivated by this need, we introduce a scalable method for simulating logi...
Ergodicity breaking meets criticality in a gauge-theory quantum simulator
Ana Hudomal, Aiden Daniel, Tiago Santiago do Espirito Santo +6 more·Dec 29, 2025
Recent advances in quantum simulations have opened access to the real-time dynamics of lattice gauge theories, providing a new setting to explore how quantum criticality influences thermalization and ergodicity far from equilibrium. Using QuEra's pro...
DifGa: Differentiable Error Mitigation for Multi-Mode Gaussian and Non-Gaussian Noise in Quantum Photonic Circuits
Dennis Delali Kwesi Wayo, Rodrigo Alves Dias, Leonardo Goliatt +1 more·Dec 29, 2025
We introduce DifGa, a fully differentiable error-mitigation framework for continuous-variable (CV) quantum photonic circuits operating under Gaussian loss and weak non-Gaussian noise. The approach is demonstrated using analytic simulations with the d...
Universal Entanglement Growth along Imaginary Time in Quantum Critical Systems
Chang-Yu Shen, Shuai Yin, Zi-Xiang Li·Dec 29, 2025
Characterizing universal entanglement features in higher-dimensional quantum matter is a central goal of quantum information science and condensed matter physics. While the subleading corner terms in two-dimensional quantum systems encapsulate essent...
LogosQ: A High-Performance and Type-Safe Quantum Computing Library in Rust
Shiwen An, Jiayi Wang, Konstantinos Slavakis·Dec 29, 2025
Developing robust and high performance quantum software is challenging due to the dynamic nature of existing Python-based frameworks, which often suffer from runtime errors and scalability bottlenecks. In this work, we present LogosQ, a high performa...
Theoretical Analysis and Simulations of Memory-based and All-photonic Quantum Repeaters and Networks
Chuen Hei Chan, Charu Jain, Ezra Kissel +4 more·Dec 28, 2025
Developing and deploying advanced Quantum Repeater (QR) technologies will be necessary to scale quantum networks to longer distances. Depending on the error mitigation mechanisms adopted to suppress loss and errors, QRs are typically classified into ...
SOFT: a high-performance simulator for universal fault-tolerant quantum circuits
Riling Li, Keli Zheng, Yiming Zhang +4 more·Dec 28, 2025
Circuit simulation tools are critical for developing and assessing quantum-error-correcting and fault-tolerant strategies. In this work, we present SOFT, a high-performance SimulatOr for universal Fault-Tolerant quantum circuits. Integrating the gene...
Stabilizer Entropy of Subspaces
Simone Cepollaro, Gianluca Cuffaro, Matthew B. Weiss +3 more·Dec 28, 2025
We consider the costs and benefits of embedding the states of one quantum system within those of another. Such embeddings are ubiquitous, e.g., in error correcting codes and in symmetry-constrained systems. In particular we investigate the impact of ...
Symmetry-Preserving Variational Quantum Simulation of the Heisenberg Spin Chain on Noisy Quantum Hardware
Rudraksh Sharma·Dec 28, 2025
Variational quantum algorithms are among the most promising approaches for simulating interacting quantum many-body systems on noisy intermediate-scale quantum (NISQ) devices. However, the practical success of variational quantum eigensolvers (VQE) c...
Aliphatic Chains as One-Dimensional XY Spin Chains
Kirill F. Sheberstov·Dec 28, 2025
Spin waves are propagating disturbances of spin order in lattices with nearest-neighbor interactions. They are traditionally observed in magnetically ordered solids using inelastic neutron, light, or electron scattering, and ferromagnetic resonance. ...
Effective Kinetic Monte Carlo for a Quantum Epidemic Process
Alexander Sturges, Hugo Smith, Matteo Marcuzzi·Dec 28, 2025
Inspired by previous works on epidemic-like processes in open quantum systems, we derive an elementary quantum epidemic model that is simple enough to be studied via Quantum Jump Monte Carlo simulations at reasonably large system sizes. We show how s...
Gauge Symmetry in Quantum Simulation
Masanori Hanada, Shunji Matsuura, Andreas Schafer +1 more·Dec 28, 2025
Quantum simulation of non-Abelian gauge theories requires careful handling of gauge redundancy. We address this challenge by presenting universal principles for treating gauge symmetry that apply to any quantum simulation approach, clarifying that ph...
Error Resilience of Fracton Codes and Near Saturation of Code-Capacity Threshold in Three Dimensions
Giovanni Canossa, Lode Pollet, Miguel A. Martin-Delgado +2 more·Dec 28, 2025
Fracton codes have been intensively studied as novel topological states of matter, yet their fault-tolerant properties remain largely unexplored. Here, we investigate the optimal thresholds of self-dual fracton codes, in particular the checkerboard c...
Benchmarking Lie-Algebraic Pretraining and Non-Variational QWOA for the MaxCut Problem
Matthaus Zering, Jolyon Joyce, Tal Gurfinkel +1 more·Dec 28, 2025
The Quantum Approximate Optimization Algorithm (QAOA) is a leading candidate for achieving quantum advantage in combinatorial optimization on Near-Term Intermediate-Scale Quantum (NISQ) devices. However, random initialization of the variational param...
Simulating Fully Gauge-Fixed SU(2) Hamiltonian Dynamics on Digital Quantum Computers
Henry Froland, Dorota M. Grabowska, Zhiyao Li·Dec 28, 2025
Quantum simulations of many-body systems offer novel methods for probing the dynamics of the Standard Model and its constituent gauge theories. Extracting low-energy predictions from such simulations rely on formulating systematically-improvable repr...
1d-qt-ideal-solver: 1D Idealized Quantum Tunneling Solver with Absorbing Boundaries
Sandy H. S. Herho, Siti N. Kaban, Rusmawan Suwarman +2 more·Dec 27, 2025
We present 1d-qt-ideal-solver, an open-source Python library for simulating one-dimensional quantum tunneling dynamics under idealized coherent conditions. The solver implements the split-operator method with second-order Trotter-Suzuki factorization...
Variational quantum eigensolver for chemical molecules
Luca Ion, Adam Smith·Dec 27, 2025
Solving interacting multi-particle systems is a central challenge in quantum chemistry and condensed matter physics. In this work, we investigate the computation of ground states and ground-state energies for the He-H+ and H2O molecules using quantum...
Fast collisional $\sqrt{\mathrm{SWAP}}$ gate for fermionic atoms in an optical superlattice
Rafi Weill, Jonathan Nemirovsky, Yoav Sagi·Dec 27, 2025
Collisional gates in optical superlattices have recently achieved record fidelities, but their operation times are typically limited by tunneling. Here we propose and analyze an alternative route to a fast $\sqrt{\mathrm{SWAP}}$ gate for two fermioni...
Modeling Noise in Quantum Computing of Scalar Convection
Jiahua Yang, Zhen Lu, Yue Yang·Dec 27, 2025
Quantum computing holds potential for accelerating the simulation of fluid dynamics. However, hardware noise in the noisy intermediate-scale quantum era significantly distorts simulation accuracy. Although error magnitudes are frequently quantified, ...