From Liouville equation to universal quantum control: A study of generating ultra highly squeezed statesWe find that the seemingly disparate control approaches for classical and quantum continuous-variable systems can be unified via differential manifolds of the ancillary representations. For classical…Zhu-yao Jin, J. Q. You, Jun Jing·Jul 24, 2026SaveLearn
Mapping g-factors and complex intervalley coupling in Si/SiGe by conveyor-mode shuttlingAs silicon spin qubit chips are increasing in qubit number and area, methods for the screening of qubit related material parameters become vital. Here we demonstrate the two-dimensional mapping of…Mats Volmer, Tom Struck, Arnau Sala et al.·Jul 24, 2026SaveLearn
Heisenberg scaling in optical magnetometry with measurement-induced correlations as a quantum resourceTheoretical proposals to reach the Heisenberg scaling of the measurement precision typically require carefully engineered interactions or initial entanglement. In studying optical magnetometry, we…Georg Engelhardt, Ming Li, Xingchang Wang et al.·Jul 24, 2026SaveLearn
Liquid metal printing for superconducting circuitsSuperconducting circuits are a promising platform for implementing fault-tolerant quantum computers, quantum limited amplifiers, ultra-low power superconducting electronics, and sensors with ultimate…Alexander Kreiner, Navid Hussain, Ritika Dhundhwal et al.·Jul 24, 2026SaveLearn
Witnessing genuine multipartite entanglement in phase space with controlled Gaussian unitariesMany existing genuine multipartite entanglement (GME) witnesses for continuous-variable (CV) quantum systems typically rely on quadrature measurements, which are challenging to implement in platforms…Lin Htoo Zaw, Jiajie Guo, Qiongyi He et al.·Jul 24, 2026SaveLearn
Sufficient Wigner Negativity Implies Genuine Multipartite EntanglementWigner negativity and genuine multipartite entanglement (GME) are key nonclassical resources that enable computational advantages and broader quantum-information tasks. In this work, we prove two…Lin Htoo Zaw, Jiajie Guo, Qiongyi He et al.·Jul 24, 2026SaveLearn
Apparent Universal Behavior in Second Moments of Random Quantum CircuitsJust how fast does the brickwork circuit form an approximate 2-design? Is there any difference between anticoncentration and being a 2-design? Does geometry matter? How deep a circuit will I need in…Daniel Belkin, James Allen, Bryan K. Clark·Jul 24, 2026SaveLearn
Universal initial state preparation for first quantized quantum simulationsPreparing symmetry-adapted initial states is a principal bottleneck in first-quantized quantum simulation. We present a universal approach that efficiently maps any polynomial-size superposition of…Jack S. Baker, Gaurav Saxena, Thi Ha Kyaw·Jul 24, 2026SaveLearn
Benchmarking Quantum Simulation of Chemical Hamiltonians using the Sorted-List EncodingQuantum Phase Estimation (QPE) is a cornerstone algorithm for fault-tolerant quantum computation, especially for electronic structure calculations of chemical systems. Optimal simulation relies on a…Calvin Ku, Yu-Cheng Chen, Alice Hu et al.·Jul 24, 2026SaveLearn
Entanglement swapping in high dimensions with only linear opticsEntanglement swapping is a fundamental building block for realizing first-generation quantum repeaters, which are essential for building global quantum networks. Current quantum repeater systems…Baghdasar Baghdasaryan, Kaushik Joarder, Fabian Steinlechner·Jul 24, 2026SaveLearn
Bridging Theory and Practice in Quantum Game Theory: Optimized Implementation of the Battle of the Sexes with Error Mitigation on NISQ HardwareImplementing 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.…Germán Díaz Agreda, Carlos Andres Duran Paredes, Mateo Buenaventura Samboni et al.·Jul 24, 2026SaveLearn
Joint parameter estimation and multidimensional reconciliation for continuous-variable quantum key distributionAccurate quantum channel parameter estimation is essential for effective information reconciliation in continuous-variable quantum key distribution (CV-QKD). However, conventional maximum likelihood…Jisheng Dai, Xue-Qin Jiang, Peng Huang et al.·Jul 24, 2026SaveLearn
Logical accreditation: a framework for efficient certification of fault-tolerant computationsAs fault-tolerant quantum computers scale, certifying the accuracy of computations performed with encoded logical qubits will soon become classically intractable. This creates a critical need for…James Mills, Adithya Sireesh, Dominik Leichtle et al.·Jul 24, 2026SaveLearn
Barren-plateau free variational quantum simulation of Z2 lattice gauge theoriesIn this work, we design a variational quantum eigensolver (VQE) suitable for investigating ground states and static string breaking in a Z2 lattice gauge theory (LGT). We consider a…Fariha Azad, Matteo Inajetovic, Stefan Kühn et al.·Jul 24, 2026SaveLearn
Mixed spin-boson coupling for qubit readout with suppressed residual shot-noise dephasingDirect dipole coupling between a two-level system and a bosonic mode describes the interactions present in a wide range of physical platforms. In this work, we study a coupling that is mixed between…Jinlun Hu, Antonio L. R. Manesco, André Melo et al.·Jul 24, 2026SaveLearn
Molecular Quantum Control Algorithm Design by Reinforcement LearningPrecision measurements of molecules offer an unparalleled paradigm to probe physics beyond the Standard Model. The rich internal structure within these molecules makes them exquisite sensors for…Anastasia Pipi, Xuecheng Tao, Arianna Wu et al.·Jul 24, 2026SaveLearn
Passive and active suppression of transduced noise in silicon spin qubitsAddressing and mitigating decoherence sources plays an essential role in the development of a scalable quantum computing system, which requires low gate errors to be consistently maintained…Jaemin Park, Hyeongyu Jang, Hanseo Sohn et al.·Jul 24, 2026SaveLearn
Rydberg quantum antennas for chip-interfaced single-photon source arrayWe propose a Rydberg quantum antenna, consisting of a one-dimensional chain of neutral atoms trapped in a standing-wave optical tweezer, as a chip-interfaced single-photon source. Rydberg blockade…Yan-Lei Zhang, Dong-Qi Ma, Guang-Jie Chen et al.·Jul 23, 2026SaveLearn
Quantum Simulation of SPAD in the Space Radiation EnvironmentSingle-Photon Avalanche Diodes (SPADs) are critical components of emerging quantum communication networks that detect single photons. They are placed in satellites for long-distance communication and…Durgesh Tinker, Kavita Lalwani·Jul 23, 2026SaveLearn
SSP-QST: Spectral Subspace Purification for Photonic Quantum State TomographyPhotonic quantum sensing often uses low-rank entangled probes such as Greenberger-Horne-Zeilinger (GHZ), Bell, and NOON states. Although these probes are ideally rank-1, practical quantum state…Anuvab Sen, Saibal Mukhopadhyay·Jul 23, 2026SaveLearn
Spectral Gap of the Davies Generator for the Mean-Field Heisenberg ModelThe mean-field Heisenberg ferromagnet is a quantum spin model on the complete graph with isotropic spin-1/2 interactions. This non-commuting Hamiltonian is permutation and SU(2) invariant,…Joao Basso, Thiago Bergamaschi, Lin Lin et al.·Jul 23, 2026SaveLearn
Tunable nonlinear electromechanics at the zero-point motion scaleNonlinearity at the scale of zero-point motion opens new possibilities for the control and readout of nanomechanical systems, but achieving this remains a formidable challenge. Here we demonstrate…Christoffer B. Møller, Roger Tormo-Queralt, Elsa Vázquez-Rodríguez et al.·Jul 23, 2026SaveLearn
Deleterious effect of photon-phonon coupling on microcavities in their application as quantum sourcesIn quantum systems, the contact with the environment is detrimental to the purity of the state, thus limiting the practical use of entangled sources in quantum information applications. This loss of…Y. Sacha C. L. S., G. C. Rickli, J. Dipold et al.·Jul 23, 2026SaveLearn
Quantum Cellular Automata from Kramers-Wannier Dualities and Modular RelationsRecent work has constructed higher-dimensional analogs of non-invertible symmetries similar to 1+1d Kramers-Wannier duality. Although their continuum descriptions often treat purely gravitational…Carolyn Zhang, Po-Shen Hsin·Jul 23, 2026SaveLearn
Electron shuttling as a probe for charge defectsSilicon spin qubits are a leading platform for scalable quantum computing, but their performance is limited by charge noise, widely attributed to two-level fluctuators (TLFs). The location of…Hamza Jnane, Tamas Daniel Lipovics, Guido Burkard·Jul 23, 2026SaveLearn