Papers

Daniel Bultrini, James R. Wootton·Aug 13, 2025

Vision paper Abstract-Quantum computers have long been more of a toy for researchers than a tool for solving complex problems. However, recent advances in the field make exploiting the advantages of fault-tolerant quantum computers feasible in the ne...

Nicolas Arlt, Karina Houska, Jochen Braumuller +7 more·Aug 13, 2025

Universal quantum computers promise to solve computational problems that are beyond the capabilities of known classical algorithms. To realize such quantum hardware on a superconducting material platform, a vast number of physical qubits has to be ma...

Meng Zhao, Manuj Singh, Anshuman Singh +10 more·Aug 13, 2025

High-fidelity control of the thousands to millions of programmable qubits needed for utility-scale quantum computers presents a formidable challenge for control systems. In leading atomic systems, control is optical: UV-NIR beams must be fanned out o...

Aaron Sander, Maximilian Frohlich, Mazen Ali +6 more·Aug 13, 2025

Classical simulations of quantum circuits are vital for assessing potential quantum advantage and benchmarking devices, yet they require sophisticated methods to avoid the exponential growth of resources. Tensor network approaches, in particular matr...

Sujeet Bhalerao, Felix Leditzky·Aug 13, 2025

In this work we improve the quantum communication rates of various quantum channels of interest using permutation-invariant quantum codes. We focus in particular on parametrized families of quantum channels and aim to improve bounds on their quantum ...

Samuel Crew, H. Lu·Aug 13, 2025

We demonstrate the use of variational neural network quantum states to study non-stabilizerness in qubit-regularised quantum field theory. Applying the methodology recently introduced by Sinibaldi et al., we numerically compute the stabilizer R\'enyi...

Maryam Mudassar, Alexander Schuckert, Daniel Gottesman·Aug 13, 2025

Majorana-based quantum computation in nanowires and neutral atoms has gained prominence as a promising platform to encode qubits and protect them against noise. In order to run computations reliably on such devices, a fully fault-tolerant scheme is n...

Maggie Lawrence, Matthew Pocrnic, Erin Fung +3 more·Aug 12, 2025

Carrier transport in quantum networks is governed by a variety of factors, including network dimensionality and connectivity, on-site energies, couplings between sites and whether they are short- or long-range, leakage processes, and environmental ef...

A. Di Piazza, K. Qu·Aug 12, 2025

Electromagnetic radiation by accelerated charges is a fundamental process in physics. Here, we introduce a quantum-optical framework for controlling the emission of radiation of an electron in an intense laser field via squeezed vacuum states. By eng...

Michele Minervini, Madison Chin, Jacob Kupperman +6 more·Aug 12, 2025

A quantum thermodynamic system is described by a Hamiltonian and a list of conserved, non-commuting charges, and a fundamental goal is to determine the minimum energy of the system subject to constraints on the charges. Recently, [Liu et al., arXiv:2...

Seyed Javad Akhtarshenas, Saman Karimi, Mahdi Salehi·Aug 12, 2025

In the framework of mutually unbiased bases (MUBs), a measurement in one basis gives \emph{no information} about the outcomes of measurements in another basis. Here, we relax the no-information condition by allowing the $d$ outcomes to be predicted a...

Weilin Wang, Ronghai Liu, Fangcheng Qiu +3 more·Aug 12, 2025

In this study, the energy spectrum and thermal equilibrium states of the finite-size Dicke-Stark model were numerically obtained within the extended coherent state space by solving the dressed master equation for strongly coupled light-atom systems. ...

Shady Agwa, Yihan Pan, Georgios Papandroulidakis +1 more·Aug 12, 2025

Artificial intelligence (AI) models are currently driven by a significant upscaling of their complexity, with massive matrix-multiplication workloads representing the major computational bottleneck. In-memory computing (IMC) architectures are propose...

Zhijian Lai, Jiang Hu, Dong An +1 more·Aug 12, 2025

Parameter shift rules (PSRs) are useful methods for computing arbitrary-order derivatives of the cost function in parameterized quantum circuits. The basic idea of PSRs is to evaluate the cost function at different parameter shifts, then use specific...

Yusuke Hama, Tadashi Kadowaki·Aug 12, 2025

Quantum computing and machine learning are state-of-the-art technologies that have been investigated intensively in both academia and industry. The hybrid technology of these two ingredients is expected to be a powerful tool to solve complex problems...

Amir Kermanshahani, Ebrahim Ardeshir-Larijani, Rakesh Saini +1 more·Aug 12, 2025

Quantum computing, with its ability to do exponentially faster computation compared to classical systems, has found novel applications in various fields such as machine learning and recommendation systems. Quantum Machine Learning (QML), which integr...

Lukas Heunisch, Longxiang Huang, Stephan Tasler +8 more·Aug 12, 2025

We propose a hybrid quantum computing architecture composed of alternating fluxonium and transmon qubits, that are coupled via transmon tunable couplers. We show that this system offers excellent scaling properties, characterized by engineered zero $...

Gayatri Singh, Ramchandra Sahani, V. Jagadish +3 more·Aug 12, 2025

The Petz recovery map is a fundamental protocol in quantum information theory, enabling the retrieval of quantum information lost due to noisy processes. Here, we experimentally implement the Petz recovery map on a nuclear magnetic resonance (NMR) qu...

Hua-Liang Liu, Hao-Ru Su, Si-Qiu Gong +34 more·Aug 12, 2025

The creation of large-scale, high-fidelity quantum computers is not only a fundamental scientific endeavour in itself, but also provides increasingly robust proofs of quantum computational advantage (QCA) in the presence of unavoidable noise and the ...

Germ'an D'iaz Agreda, Carlos Andrés Duran Paredes, Mateo Buenaventura Samboni +2 more·Aug 12, 2025

Implementing quantum game theory on real hardware is challenging due to noise, decoherence, and limited qubit connectivity, yet such demonstrations are essential to validate theoretical predictions. We present one of the first full experimental reali...