Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Nonclassical nullifiers for quantum hypergraph states
Abhijith Ravikumar, Darren W. Moore, Radim Filip·Feb 4, 2025
Quantum hypergraph states form a generalisation of the graph state formalism that goes beyond the pairwise (dyadic) interactions imposed by remaining inside the Gaussian approximation. Networks of such states are able to achieve universality for cont...
A mixed-precision quantum-classical algorithm for solving linear systems
Océane Koska, Marc Baboulin, Arnaud Gazda·Feb 4, 2025
We address the problem of solving a system of linear equations via the Quantum Singular Value Transformation (QSVT). One drawback of the QSVT algorithm is that it requires huge quantum resources if we want to achieve an acceptable accuracy. To reduce...
Cryogenic Thermal Modeling of Microwave High Density Signaling
Naomi Raicu, Tom Hogan, Xian Wu +4 more·Feb 4, 2025
Superconducting quantum computers require microwave control lines running from room temperature to the mixing chamber of a dilution refrigerator. Adding more lines without preliminary thermal modeling to make predictions risks overwhelming the coolin...
Developing techniques for Simulation of SU(3) Quantum Field Theories on State-of-the-Art Quantum Devices
I. Chernyshev·Feb 4, 2025
Quantum computing has long been an experimental technology with the potential to simulate, at scale, phenomena which on classical devices would be too expensive to simulate at any but the smallest scales. Over the last several years, however, it has ...
Quantum Algorithms for Quantum Molecular Systems: A Survey
Yukun Zhang, Xiao-Ming Zhang, Jinzhao Sun +4 more·Feb 4, 2025
Solving quantum molecular systems presents a significant challenge for classical computation. The advent of early fault‐tolerant quantum computing devices offers a promising avenue to address these challenges, leveraging advanced quantum algorithms w...
PALQA: A Novel Parameterized Position-Aware Lossy Quantum Autoencoder using LSB Control Qubit for Efficient Image Compression
Md. Ershadul Haque, Manoranjan Paul, Faranak Tohidi +2 more·Feb 4, 2025
With the growing interest in quantum computing, quantum image processing technology has become a vital research field due to its versatile applications and ability to outperform classical computing. A quantum autoencoder approach has been used for co...
Unlocking the power of global quantum gates with machine learning
Vinit Singh, Bin Yan·Feb 4, 2025
In conventional circuit-based quantum computing architectures, the standard gate set includes arbitrary single-qubit rotations and two-qubit entangling gates. This choice is not always aligned with the native operations available in certain hardware,...
Chemically-Accurate Prediction of the Ionisation Potential of Helium Using a Quantum Processor
M. Per, N. Rhodes, Maiyuren Srikumar +1 more·Feb 4, 2025
Quantum computers have the potential to revolutionise our understanding of the microscopic behaviour of materials and chemical processes by enabling high-accuracy electronic structure calculations to scale more efficiently than is possible using clas...
SpinGlassPEPS.jl: Tensor-network package for Ising-like optimization on quasi-two-dimensional graphs
Tomasz Śmierzchalski, A. M. Dziubyna, Konrad Jalowiecki +4 more·Feb 4, 2025
This work introduces SpinGlassPEPS$.$jl, a software package implemented in Julia, designed to find low-energy configurations of generalized Potts models, including Ising and QUBO problems, utilizing heuristic tensor network contraction algorithms on ...
Quantum-enabled framework for the Advanced Encryption Standard in the post-quantum era
Albert Nieto Morales, Arit Kumar Bishwas, J. J. Varghese·Feb 4, 2025
Quantum computers create new security risks for today's encryption systems. This paper presents an improved version of the Advanced Encryption Standard (AES) that uses quantum technology to strengthen protection. Our approach offers two modes: a full...
Qubit‐Efficient Quantum Local Search for Combinatorial Optimization
M. Podobrii, Viacheslav Kuzmin, V. Voloshinov +2 more·Feb 4, 2025
An essential component of many sophisticated metaheuristics for solving combinatorial optimization problems is some variation of a local search routine that iteratively searches for a better solution within a chosen set of immediate neighbors. The si...
Improved quantum computation using operator backpropagation
Bryce Fuller, M. Tran, Danylo Lykov +10 more·Feb 4, 2025
Decoherence of quantum hardware is currently limiting its practical applications. At the same time, classical algorithms for simulating quantum circuits have progressed substantially. Here, we demonstrate a hybrid framework that integrates classical ...
Efficient Magic State Cultivation on the Surface Code
Yotam Vaknin, Shoham Jacoby, Arne Grimsmo +1 more·Feb 3, 2025
Magic state cultivation is a leading approach for generating the resource states required for fault-tolerant quantum computation. Here we present a new cultivation protocol that increases the success probability of magic-state generation in platforms...
Additivity and chain rules for quantum entropies via multi-index Schatten norms
Omar Fawzi, Jan Kochanowski, Cambyse Rouzé +1 more·Feb 3, 2025
The primary entropic measures for quantum states are additive under the tensor product. In the analysis of quantum information processing tasks, the minimum entropy of a set of states, e.g., the minimum output entropy of a channel, often plays a cruc...
Near-deterministic photon entanglement from a spin qudit in silicon using third quantisation
Gözde Üstün, Samuel Elman, Jarryd J. Pla +3 more·Feb 3, 2025
Unlike other quantum hardware, photonic quantum architectures can produce millions of qubits from a single device. However, controlling photonic qubits remains challenging, even at small scales, due to their weak interactions, making non-deterministi...
Solid neon as a noise-resilient host for electron qubits above 100 mK
Xinhao Li, Christopher S. Wang, Brennan Dizdar +7 more·Feb 3, 2025
Solid neon can be used as a solid host for single-electron qubits, and at temperatures of around 10 mK, electron-on-solid-neon charge qubits exhibit long coherence times and high operation fidelities. However, systematic characterization of the noise...
Quantum Codes with Addressable and Transversal Non-Clifford Gates
Zhiyang He, Vinod Vaikuntanathan, Adam Wills +1 more·Feb 3, 2025
The development of quantum codes with good error correction parameters and useful sets of transversal gates is a problem of major interest in quantum error-correction. Abundant prior works have studied transversal gates which are restricted to acting...
Reducing the Sampling Complexity of Energy Estimation in Quantum Many-Body Systems Using Empirical Variance Information
Alexander Gresch, Uğur Tepe, M. Kliesch·Feb 3, 2025
We consider the problem of estimating the energy of a quantum state preparation for a given Hamiltonian in Pauli decomposition. For various quantum algorithms, in particular in the context of quantum chemistry, it is crucial to have energy estimates ...
Impact of Fixing Spins in a Quantum Annealer with Energy Rescaling
Tomohiro Hattori, Hirotaka Irie, Tadashi Kadowaki +1 more·Feb 3, 2025
Quantum annealing is a promising algorithm for solving combinatorial optimization problems. However, various hardware restrictions significantly impede its efficient performance. Size-reduction methods provide an effective approach for addressing lar...
Postselection-free experimental observation of the measurement-induced phase transition in circuits with universal gates
Xiaozhou Feng, Jeremy Cot'e, S. Kourtis +1 more·Feb 3, 2025
Monitored many-body systems can exhibit a phase transition between entangling and disentangling dynamical phases by tuning the strength of measurements made on the system as it evolves. This phenomenon is called the measurement-induced phase transiti...