Papers

Xu-Yang Gu, Da'er Feng, Zhen-Yu Peng +17 more·Jul 6, 2025

Efficient qubit reset and leakage reduction are essential for scalable superconducting quantum computing, particularly in the context of quantum error correction. However, such operations often require additional on-chip components. Here, we propose ...

Valter Uotila, I. Salmenperá, Leo Becker +3 more·Jul 6, 2025

Measurement is a fundamental operation in quantum computing and has many important use cases in quantum algorithms. This article provides a comprehensive overview of the basic measurement operations in quantum computing and represents a selected set ...

Yuexin Su, Ziyi Yang, Peiyuan Huang +2 more·Jul 6, 2025

Bandits with knapsacks (BwK) constitute a fundamental model that combines aspects of stochastic integer programming with online learning. Classical algorithms for BwK with a time horizon $T$ achieve a problem-independent regret bound of ${O}(\sqrt{T}...

Yuan-De Jin, Shi-Yu Zhang, U. Andersen +1 more·Jul 5, 2025

We present a general approach to error detection of bosonic quantum error-correction codes via an adaptive quantum phase estimation algorithm assisted by a single ancilla qubit. The approach is applicable to a broad class of bosonic codes whose error...

David Miloschewsky, Supartha Podder·Jul 4, 2025

In 2004, Aaronson introduced the complexity class $\mathsf{PostBQP}$ ($\mathsf{BQP}$ with postselection) and showed that it is equal to $\mathsf{PP}$. Following their line of work, we introduce two new complexity classes. The first, $\mathsf{CorrBQP}...

Utkarsh Singh, Jean-Frédéric Laprade, Aaron Z. Goldberg +1 more·Jul 4, 2025

Quantum processors may enhance machine learning by mapping high-dimensional data onto quantum systems for processing. Conventional feature maps, for encoding data onto a quantum circuit are currently impractical, as the number of entangling gates sca...

Ivan V. Dudinets, Jaehee Kim, Tomás Ramos +3 more·Jul 4, 2025

We propose and validate a framework for analog simulation of the Heisenberg spin model using a circuit quantum electrodynamics (circuit-QED) platform. Our method involves the Dyson-Maleev transformation, for which we develop a procedure to circumvent...

Ruopengyu Xu, Chenglian Liu·Jul 4, 2025

The advent of quantum computing poses a critical threat to RSA cryptography, as Shor's algorithm can factor integers in polynomial time. While post-quantum cryptography standards offer long-term solutions, their deployment faces significant compatibi...

Luca Cappelli, Claudio Sanavio, Alessandro Andrea Zecchi +2 more·Jul 4, 2025

Neighbor search is a computationally demanding problem, usually both time- and memory-consuming. The main problem of this kind of algorithms is the long execution time due to cache misses. In this work, we propose a quantum algorithm for the Fixed RA...

Kadir Gümüş, J. Frazão, B. Skoric +4 more·Jul 4, 2025

We introduce a two-step error correction scheme for reconciliation in continuous-variable quantum key distribution systems. Using this scheme, it is possible to use error correction codes with small blocklengths (1000 bits), increasing secret key rat...

Mohamed Messaoud Louamri, Achraf Boussahi, N. Belaloui +2 more·Jul 4, 2025

Quantum mechanics offers a fundamentally unpredictable entropy source due to the intrinsic probabilistic nature of quantum measurements, making it attractive for secure random number generation. This paper explores the practicality of generating rand...

Franccois-Marie Le R'egent·Jul 4, 2025

Achieving fault-tolerant quantum computation (FTQC) demands simultaneous progress in physical qubit performance and quantum error correction (QEC). This work reviews and benchmarks experimental advancements towards FTQC across leading platforms, incl...

Chellasamy Jebarathinam·Jul 3, 2025

For the bipartite Bell scenario with two inputs and two outputs, a nonlinear witness of dimensionally restricted nonlocality is introduced. Popescu-Rohrlich (PR) box fraction of dimensionally restricted nonlocality is then introduced and studied usin...

Lin Zhang, Xiaohan Jiang, Bing Xie·Jul 3, 2025

While the exact separability probability of 8/33 for two-qubit states under the Hilbert-Schmidt measure has been reported by Huong and Khoi [\href{https://doi.org/10.1088/1751-8121/ad8493}{J.Phys.A:Math.Theor.{\bf57}, 445304(2024)}], detailed derivat...

Benjamin Stratton·Jul 3, 2025

Non-stabilizerness, or magic, is a resource for universal quantum computation in most fault-tolerant architectures; access to states with non-stabilizerness allows for non-classically simulable quantum computation to be performed. Quantifying this re...

Sean Garner, Chenxu Liu, Meng Wang +2 more·Jul 3, 2025

The quantum stabilizer formalism became foundational for understanding error correction soon after the realization of the first useful quantum error correction codes. Stabilizers provide a way to describe sets of quantum states which are valid codewo...

Andraz Omahen, Simon Storz, Marius Bild +3 more·Jul 3, 2025

Initialization of mechanical modes in the quantum ground state is crucial for their use in quantum information and quantum sensing protocols. In quantum processors, impurity of the modes'initial state affects the infidelity of subsequent quantum algo...

Aleix Bou‐Comas, Marcin Plodzie'n, Luca Tagliacozzo +1 more·Jul 3, 2025

We present a quantum-inspired solver for the one-dimensional Gross-Pitaevskii equation in the Quantics Tensor-Train (QTT) representation. By evolving the system entirely within a low-rank tensor manifold, the method sidesteps the memory and runtime b...

N. Paterakis, P. Karamanakos, Corey O’Meara +1 more·Jul 3, 2025

Quantum computing is rapidly emerging as a promising technology for solving complex optimization problems that arise in various engineering fields. Therefore, it holds significant promise to transform the computational foundations of power electronic...

Tamila Kuanysheva, Brian Kendrick, Lukasz Cincio +1 more·Jul 3, 2025

We explore how the fundamental problems in quantum molecular dynamics can be modeled using classical simulators (emulators) of quantum computers and the actual quantum hardware available to us today. The list of problems we tackle includes propagatio...