Quantum randomness certification with untrusted measurements and few probe statesWe present a scheme for semi-device-independent quantum randomness certification from an untrusted measurement device and a trusted source and demonstrate it experimentally. No assumptions about…Makoto Ishihara, Carles Roch i Carceller, Kieran Neil Wilkinson et al.·Jul 21, 2026SaveLearn
Limit of spin squeezing in trapped Bose-Einstein condensatesThe evolution of an interacting two-component Bose-Einstein condensate from an initial phase state leads to a spin squeezed state that may be used in atomic clocks to increase the signal-to-noise…Alice Sinatra, Yvan Castin, Emilia Witkowska·Jul 21, 2026SaveLearn
Optimum spin-squeezing in Bose-Einstein condensates with particle lossesThe problem of spin squeezing with a bimodal condensate in presence of particle losses is solved analytically by the Monte Carlo wavefunction method. We find the largest obtainable spin squeezing as…Yun Li, Yvan Castin, Alice Sinatra·Jul 21, 2026SaveLearn
Motional Kerr-Cat States of an Atom in an Optical TweezerSchrödinger cat states - quantum superpositions of classically or macroscopically distinct states - constitute a powerful resource for quantum computing, enhanced metrology, and probing coherence on…Steven K. Pampel, Gur Lubin, Dawson P. Hewatt et al.·Jul 20, 2026SaveLearn
Nonlinear Optics Mediated by Chiral Waveguide QED: Generation of Momentum-anticorrelated Photon PairsIn recent years, chiral quantum optics has emerged as an active research area due to the promising applications in quantum information processing as well as nonlinear optics. We present results on…Wenqi Tong, Spencer J Walsh, H. Alaeian et al.·Jul 20, 2026SaveLearn
Quantum Reservoir Computing: Recent Advances and Future DirectionsQuantum reservoir computing (QRC) uses the dynamics of a fixed or weakly tuned quantum system to transform temporal and sequential inputs into measured features, while training is typically confined…Shehbaz Tariq, Muhammad Talha, Arshid Ali et al.·Jul 20, 2026SaveLearn
Simulating the Dicke Model on Qubit-Based and hybrid Qubit-Boson-Based Quantum ComputersThe Dicke model provides a fundamental description of collective light-matter interactions and has long served as a testbed for exploring a wide range of physical phenomena in quantum optics and…Aravind P. Babu, Seongjin Ahn, Jing Sun et al.·Jul 20, 2026SaveLearn
From Canonical to Tunable Phase Diagrams in Open Quantum Long-Range SystemsWe investigate the dissipative dynamics of a generalized Lipkin-Meshkov-Glick (LMG) model coupled to a thermal environment. In this generalized model, in addition to the conventional quadratic…Anish Acharya, Shamik Gupta·Jul 20, 2026SaveLearn
State k-designs from Hamiltonian evolutionWe study the generation of state k-designs from time evolution under a fixed Hamiltonian. Specifically, we consider the ensemble $E=\e-iHt|ψ0 | \ t…Shengxian Hou, Zong-Yue Hou, Zhi-Cheng Yang·Jul 20, 2026SaveLearn
Observation of a power transfer controlled by the phase of a quantum superpositionA driven qubit exchanges energy with the propagating modes that drive it. When two spatially separated modes drive a single qubit with opposite amplitudes, their net action on the qubit cancels. Yet…Nathanaël Cottet, Sébastien Jezouin, Bogdan Reznychenko et al.·Jul 20, 2026SaveLearn
Equivariant Continuous Normalizing Flows with Offline Sampling for Fermionic Ground State EstimationWe introduce a framework for fermionic variational Monte Carlo (VMC) in which a continuous normalizing flow (CNF) refines a fixed antisymmetric base wavefunction. The flow is implemented as a…Sam Cochran, James B. Larsen, Andrew Wray et al.·Jul 20, 2026SaveLearn
Reducing entanglement with a Hamiltonian derived Clifford transformationRecently (Physica Scripta, 100(10):105401, 2025), an algorithm was introduced that deterministically generates a Clifford transformation from the Qubit Coupled Cluster (QCC) algorithm which we call…James Brown, Erika Lloyd, Alexandre Fleury et al.·Jul 20, 2026SaveLearn
Monolithic printed-circuit board RF-trap for electronsQubits encoded in the spin of trapped electrons have been proposed as a promising novel platform for quantum information processing. While trapping of electrons has been largely carried out in…Zijue Luo, Jae Eu, Tianyi Wang et al.·Jul 20, 2026SaveLearn
Magic-protected entanglement and Clifford-irreducible structure in magic state spaceWe develop a Clifford-orbit framework for studying magic-protected entanglement, which we refer to as magical entanglement: the part of bipartite entanglement that remains after optimal stabilizer…Alejandro Borda Kuhlmann, Julian Rincon·Jul 20, 2026SaveLearn
Adlam's Frame: comment on "Wigner's Frame"Recent no-go theorems based on extended Wigner's Friend scenarios (EWFS) reveal a deep tension between the universal validity of quantum theory and local friendliness (LF), the conjunction of…Andrea Di Biagio, Anne-Catherine de la Hamette·Jul 20, 2026SaveLearn
Nishimori Threshold Estimation for Bayesian Inference and Zq Surface Code DecodingIn quantum error correction, the error threshold provides essential quantitative guidance for the ability to bring about fault-tolerance through decoding the effects of incoherent noise, weak…Rohit Mukherjee, Simon Trebst·Jul 20, 2026SaveLearn
Probing gravitational interaction between milligram optomechanical oscillators operating in the quantum regimeWe present an ongoing optomechanical experiment aimed at detecting gravitational interaction between milligram-scale oscillators, and exploring its interplay with quantum mechanics. The setup employs…M. Bonaldi, A. Borrielli, G. Di Giuseppe et al.·Jul 20, 2026SaveLearn
Hardware Robustness of Sample-Based Quantum DiagonalizationSample-based Quantum Diagonalization (SQD) is a hybrid quantum-classical method that replaces variational optimization with a self-consistent recovery loop over QPU samples. Although SQD is…Ahatesham Bhuiyan, Cheng Chu, Qian Lou et al.·Jul 20, 2026SaveLearn
Phase-Sensitive Benchmarking of Composite Quantum Gates with Chiral-Interference Circuits on Quantum HardwareWe construct and experimentally implement compact gate-native circuits that simulate the state-transfer interference underlying three- and four-level chiral-resolution protocols. Both models are…Georgi M. Aleksandrov, Nikolay V. Vitanov·Jul 20, 2026SaveLearn
CutBackdoor: A Circuit Cut Triggered Backdoor Attack on Variational Quantum AlgorithmsVariational Quantum Algorithms (VQAs) are a leading paradigm for near-term quantum computing, combining parameterized quantum circuits with classical optimization across quantum chemistry,…Ahatesham Bhuiyan, Hoang Ngo, Cheng Chu et al.·Jul 20, 2026SaveLearn
Exponential Reduction of Mesh Dependence in Quantum Estimation of Parabolic PDE ObservablesCan a quantum PDE algorithm avoid the polynomial cost of resolving a fine spatial mesh? For standard fixed-order discretizations, direct classical methods require work polynomial in h-1, or…Xiantao Li·Jul 20, 2026SaveLearn
Noise structuring in fixed-depth Trotter simulation: stationary channels and observable-level depolarizationWe analyze fixed-depth Trotter simulation as a method for structuring hardware noise in digital many-body dynamics. The number of layers is chosen using the largest endpoint time and is then kept…G. L. Stavisskii, W. V. Pogosov, L. E. Fedichkin et al.·Jul 20, 2026SaveLearn
Variational non-gaussian approach to interacting spin-boson modelsWe apply a hybrid variational framework to interacting spin-boson Hamiltonians, targeting regimes where simulations are limited by the unbounded bosonic Hilbert space and strong many-body…João Pedro Mendonça, Yao Wang, Krzysztof Jachymski·Jul 20, 2026SaveLearn
Sensing relativistic quantum fields with minimally perturbing local measurementsWe develop a framework for minimally perturbing local measurements in relativistic quantum field theory, with the aim to sense local properties of the field in a non-destructive manner. The field…F. Daem, L. Ballesteros Ferraz, A. Zampeli et al.·Jul 20, 2026SaveLearn
How the Quantum Sorites Phenomenon Strengthens the Bell Argument and How a Random-Matrix Collapse Dynamics Answers ItBell proved that no theory of pre-existing local values can reproduce the predictions of quantum mechanics, but his proof leaves the culprit ambiguous: one may reject either of two independence…Malcolm Forster·Jul 20, 2026SaveLearn