Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Refined Criteria for QRAM Error Suppression via Efficient Large-Scale QRAM Simulator
Yun-Jie Wang, Tai-Ping Sun, Xi-Ning Zhuang +6 more·Mar 18, 2025
Quantum random access memory (QRAM) is a critical primitive for quantum algorithms that require data lookup in superposition, but its lack of fault tolerance poses a major obstacle to practical deployment. Error filtration (EF) has been proposed as a...
Superdiffusion resilience in Heisenberg Chains with 2D interactions on a quantum processor
Keerthi Kumaran, M. Sajjan, Bibek Pokharel +7 more·Mar 18, 2025
Observing superdiffusive scaling in the spin transport of the integrable 1D Heisenberg model is one of the key discoveries in non-equilibrium quantum many-body physics. Despite this remarkable theoretical development and the subsequent experimental o...
Scalable and fault-tolerant preparation of encoded k -uniform states
Shayan Majidy, Dominik Hangleiter, M. Gullans·Mar 18, 2025
$k$-uniform states are valuable resources in quantum information, enabling tasks such as teleportation, error correction, and accelerated quantum simulations. The practical realization of $k$-uniform states, at scale, faces major obstacles: verifying...
Quantum Dynamics Simulation of the Advection-Diffusion Equation
Hirad Alipanah, Feng Zhang, Yongxin Yao +6 more·Mar 17, 2025
The advection-diffusion equation is simulated on a superconducting quantum computer via several quantum algorithms. Three formulations are considered: (1) Trotterization, (2) variational quantum time evolution (VarQTE), and (3) adaptive variational q...
Dynamics of defects and interfaces for interacting quantum hard disks
Fabian Ballar Trigueros, Vighnesh Dattatraya Naik, Markus Heyl·Mar 17, 2025
Defects and interfaces are essential to understand the properties of matter. However, studying their dynamics in the quantum regime remains a challenge in particular concerning the regime of two spatial dimensions. Recently, it has been shown that a ...
A mathematical model for a universal digital quantum computer with an application to the Grover-Rudolph algorithm
Antonio Falcó, Daniela Falcó--Pomares, Hermann G. Matthies·Mar 17, 2025
In this work, we develop a novel mathematical framework for universal digital quantum computation using algebraic probability theory. We rigorously define quantum circuits as finite sequences of elementary quantum gates and establish their role in im...
Low-Overhead Tailoring and Learning of Noise in Graph States
Guedong Park, Jinzhao Sun, Hyunseok Jeong·Mar 17, 2025
Graph and hypergraph states are important resource states for realizing universal quantum computation and diverse non-local physical phenomena. However, noise learning in such states is challenging due to their large entanglement and magic. This work...
Accelerating Large-Scale Linear Algebra Using Variational Quantum Imaginary Time Evolution
Willie Aboumrad, Daiwei Zhu, Claudio Girotto +6 more·Mar 17, 2025
The solution of large sparse linear systems via factorization methods such as LU or Cholesky decomposition, can be computationally expensive due to the introduction of non-zero elements, or “fill-in.” Graph partitioning can be used to reduce the “fil...
Symmetric Channel Verification for Purifying Noisy Quantum Channels
Kento Tsubouchi, Yosuke Mitsuhashi, Ryuji Takagi +1 more·Mar 17, 2025
Symmetry inherent in quantum states has been widely used to reduce the effect of noise in quantum error correction and a quantum error-mitigation technique known as symmetry verification. However, these symmetry-based techniques exploit symmetry in q...
Realization of fermionic Laughlin state on a quantum processor
L. Shen, Mao Lin, Cedric Yen-Yu Lin +2 more·Mar 17, 2025
Strongly correlated topological phases of matter are central to modern condensed matter physics and quantum information technology but often challenging to probe and control in material systems. The experimental difficulty of accessing these phases h...
Cycle-Aware ZZ Crosstalk Mitigation on Quantum Hardware
Jiayi Zhong, Yuxin Deng·Mar 17, 2025
ZZ crosstalk and decoherence hinder superconducting quantum computing. To enhance parallelism in mitigating ZZ crosstalk, we formulate the problem by integrating quantum cycles and two forms of qubit interference. We then propose CYCO, a CYcle-aware ...
Learning response functions of analog quantum computers: analysis of neutral-atom and superconducting platforms
Cenk Tuysuz, Abhijith Jayakumar, Carleton Coffrin +2 more·Mar 16, 2025
Analog quantum computation is an attractive paradigm for the simulation of time-dependent quantum systems. Programmable analog quantum computers have been realized in hardware using a variety of physical principles, including neutral-atom and superco...
Quantum Simulations of Chemical Reactions: Achieving Accuracy with NISQ Devices
Maitreyee Sarkar, Lisa Roy, Akash Gutal +2 more·Mar 15, 2025
Quantum computing is viewed as a promising technology because of its potential for polynomial growth in complexity, in contrast to the exponential growth observed in its classical counterparts. In the current Noisy Intermediate-Scale Quantum (NISQ) e...
Single-step high-fidelity three-qubit gates by anisotropic chiral interactions
M. Nguyen, M. Rimbach-Russ, L. Vandersypen +1 more·Mar 15, 2025
Direct multi-qubit gates are becoming critical to facilitate quantum computations in near-term devices by reducing the gate counts and circuit depth. Here, we demonstrate that fast and high fidelity three-qubit gates can be realized in a single step ...
Quantum physics informed neural networks for multi-variable partial differential equations
Giorgio Panichi, Sebastiano Corli, Enrico Prati·Mar 15, 2025
Quantum Physics-Informed Neural Networks (QPINNs) integrate quantum computing and machine learning to impose physical biases on the output of a quantum neural network, aiming to either solve or discover differential equations. The approach has recent...
Efficient Truncations of SU($N_c$) Lattice Gauge Theory for Quantum Simulation
Anthony N. Ciavarella, I. M. Burbano, Christian W. Bauer·Mar 14, 2025
Quantum simulations of lattice gauge theories offer the potential to directly study the non-perturbative dynamics of quantum chromodynamics, but naive analyses suggest that they require large computational resources. Large $N_c$ expansions are perfor...
Near-Term Fermionic Simulation with Subspace Noise Tailored Quantum Error Mitigation
Miha Papič, Manuel G. Algaba, Emiliano Godinez-Ramirez +4 more·Mar 14, 2025
Quantum error mitigation (QEM) has emerged as a powerful tool for the extraction of useful quantum information from quantum devices. Here, we introduce the Subspace Noise Tailoring (SNT) algorithm, which efficiently combines the cheap cost of Symmetr...
Floquet-ADAPT-VQE: A Quantum Algorithm to Simulate Non-Equilibrium Physics in Periodically Driven Systems
Abhishek Kumar, Karunya Shirali, N. Mayhall +2 more·Mar 14, 2025
Periodically driven quantum systems exhibit many fascinating phenomena absent in equilibrium systems, but their simulation is more challenging than that of static systems. Consequently, quantum simulation of these systems offers greater opportunity f...
Hamiltonian Reordering for Shallower Trotterization Circuits
Cédric Ho Thanh·Mar 14, 2025
Quantum simulation is a popular application of quantum computing, but its practical realization is hindered by the technical limitations of current devices. In this work, we focus on preprocessing Hamiltonians before Trotterization to generate shallo...
A Superconducting Qubit-Resonator Quantum Processor with Effective All-to-All Connectivity
Michael Renger, Jeroen Verjauw, Nicola Wurz +62 more·Mar 13, 2025
In this work we introduce a superconducting quantum processor architecture that uses a transmission-line resonator to implement effective all-to-all connectivity between six transmon qubits. This architecture can be used as a test-bed for algorithms ...