Suppressing errors in analog logical rotation gates via balanced fusionThere have been a number of recent proposals to use analog logical rotations in early fault-tolerant quantum algorithms. Existing proposals implement a logical rotation by angle ϕ, with error…Sam McArdle, Alexander M. Dalzell, Fernando G. S. L. Brandão·Jul 22, 2026SaveLearn
Fermionic Genuine Multiparty EntanglementEntanglement can show fundamentally different behavior in fermionic systems. However, while bipartite measures of fermionic entanglement have been established, genuine multiparty entanglement (GME)…James Allen, Liuke Lyu, William Witczak-Krempa·Jul 22, 2026SaveLearn
Bistability of Exciton-Photon Microcavities in the Ultrastrong-Coupling RegimeWe investigate a coherently driven exciton--photon microcavity with Kerr nonlinearity in the ultrastrong-coupling regime. When the lower and upper polariton branches are well separated in energy, the…Rashed Aljasmi, Hisham Sati, Hichem Eleuch·Jul 22, 2026SaveLearn
Finite Key Underwater Quantum Key Distribution: Performance Analysis and ImprovementsQuantum key distribution (QKD) allows for the establishment of a secret key between two parties, secure against computationally unbounded adversaries. Most experimental and theoretical research in…Trevor Thomas, Michael Warnock, Sarah Previte et al.·Jul 22, 2026SaveLearn
Detecting Hidden Nonlinear High Frequency Modes Beyond Fundamental Minimal Temporal Resolution Using Weak MeasurementsIn this work we study whether nonlinear models of quantum mechanics can avoid detection by strong measurements, if the nonlinear effects only exist as high frequency modes. A potential physical…Igor Prlina·Jul 22, 2026SaveLearn
HI-QDC: An Isometric Modular Scalable Architecture for Quantum Data CentersServer-centric quantum data-center architectures offer scalability by distributing communication tasks across QPUs rather than concentrating complexity in a centralized switching core. However,…Mohadeseh Azari, Anoosha Fayyaz, Amy Babay et al.·Jul 22, 2026SaveLearn
Learning the closest Slater determinantLearning compact, interpretable descriptions of quantum many-body states is an important task in quantum science. We study the task of learning the Slater determinant with maximum fidelity to an…Nisarga Paul, Haimeng Zhao, David D. Dai·Jul 22, 2026SaveLearn
Perturbatively Stable Self-Correcting Classical Memory from Gauge AveragingWe show that the self-correcting memory in 3d Wegner gauge theory is stable to arbitrary small enough perturbations of the Hamiltonian. Our proof relies on a new method we dub ``gauge…Ryan Thorngren·Jul 22, 2026SaveLearn
Autonomization of Quantum Systems and the Emergence of the Work OperatorEstimation of work at the quantum scale remains a central challenge in quantum thermodynamics. Canonical approaches have a fundamental drawback: they assume classical control of the quantum system,…Carlo Cepollaro, Danial Chughtai, Alberto Spalvieri et al.·Jul 22, 2026SaveLearn
Machine-Learned Compact Subspace Generation for Quantum Selected Configuration Interaction within Density Matrix Embedding FrameworkSample-based Quantum Diagonalization (SQD), an extension of Quantum Selected Configuration Interaction (QSCI), has emerged as a promising hybrid quantum-classical paradigm for computing molecular…Ashish Kumar Patra, Anurag K. S. V., Ruchika Bhat et al.·Jul 22, 2026SaveLearn
Efficiently Simulable Pauli Correlation EncodingPauli Correlation Encoding (PCE) is a heuristic framework for binary optimisation that encodes classical variables into many-body Pauli observables. While PCE requires fewer qubits than other…Daniele Lizzio Bosco, Gabriel Matos, Chen-Yu Liu et al.·Jul 22, 2026SaveLearn
Qoreo: Choreographic Programming for Quantum Distributed SystemsProgramming distributed quantum systems requires multiple actors to coordinate precise sequences of quantum operations, classical communication, and entanglement generation. Writing such protocols…Jennifer Paykin, Steven Baldasty, Joseph P. Near et al.·Jul 22, 2026SaveLearn
Arnold--Nielsen Geometry for Complexity-Deformed Noncommutative TransportWe deform the Carlen--Maas--Wirth framework for noncommutative dynamical optimal transport by an Arnold--Nielsen type complexity operator. A positive state-independent operator G compatible with…Alberto Acevedo, Antonio Falcó·Jul 22, 2026SaveLearn
Statevector-to-Hardware Reconstruction of a Four-Qubit ZZ Quantum Kernel: A Single-Backend Case Study of Three Execution JobsHardware noise and finite sampling perturb the fidelity estimates forming a quantum-kernel Gram matrix. We measured how far three hardware-reconstructed Gram matrices depart from an exact statevector…Rostyslav Sipakov·Jul 22, 2026SaveLearn
Collective Electronic Entanglement via Infrared Cavity-Induced Vibronic TransductionPolaritonic architectures seek to engineer molecular properties by hybridizing localized degrees of freedom with delocalized optical cavity fields. However, scaling laws impose a severe bottleneck on…Vivek Yadav, Bar Cohn, Shmuel Sufrin et al.·Jul 22, 2026SaveLearn
Quantum-state block texture and its quantificationQuantum-state texture (QST) is an emerging quantum resource that has garnered increasing attention amid advances in quantum theory. In this work, we generalize the QST to quantum-state block texture…Yanjun Chu, Yuhang Xie, Chenyang Cui et al.·Jul 22, 2026SaveLearn
Microwave-driven same-species sympathetic cooling for trapped ionsSympathetic cooling of data qubits by coolant ions is an essential technique for trapped-ion quantum computing. Conventionally a second ion species is used, requiring additional lasers and…M. C. Smith, E. Vandrey, A. D. Leu et al.·Jul 22, 2026SaveLearn
Identifying local unitary equivalence based on reduction of quantum statesLocal unitary equivalence is central to entanglement quantification and classification. Identifying the local unitary equivalence remains a formidable challenge. We address this problem for a class…Yanjun Chu, Chenyang Cui, Yuhang Xie et al.·Jul 22, 2026SaveLearn
Dynamical redistribution of quantum resources in tree-level Bhabha scatteringThe fundamental interactions governed by quantum electrodynamics (QED) are intrinsically rich in quantum resources, yet how these resources dynamically redistribute during relativistic scattering is…Zan Cao, Meng-Long Song, Xue-Ke Song et al.·Jul 22, 2026SaveLearn
Entanglement dynamics through electromagnetic interactions in single-electron trapsWe study the dynamics of quantum entanglement between two harmonically trapped electrons interacting via the electromagnetic force. Starting from two-mode Gaussian states at thermal equilibrium, we…Pablo Guillermo Carmona Rufo, Anupam Mazumdar, Carlos Sabín·Jul 22, 2026SaveLearn
Coupling phase interference effects in a multimode cavity magnonics systemCoupling phases play a decisive yet often overlooked role in cavity magnonics, particularly in complex multimode systems. Here, we investigate phase-mediated interference effects in a cavity…M. Avicena, G. Bourcin, V. Vlaminck et al.·Jul 22, 2026SaveLearn
Lattice quantum electrodynamics of a molecular emitter in a topological gapEngineering the photonic environment using lattices of coupled resonators, which we refer to as lattice quantum electrodynamics (QED), provides a route to control both the spontaneous emission of…Clarisse Fournier, Johannes Düreth, Elena Fanella et al.·Jul 22, 2026SaveLearn
DQAOA-GPT: AI-Accelerated Distributed Quantum Optimization for Combinatorial ProblemsWhile combinatorial optimization problems are central to many scientific and engineering applications, their solution remains challenging due to exponentially large search spaces. Variational quantum…Seongmin Kim, Abhinav Rijal, Yuri Alexeev et al.·Jul 22, 2026SaveLearn
Observable Geometry for Effective Quantum CircuitsWe study redundancy and effectiveness of Variational Quantum Circuits via algebraic and geometric views of Lie groups. Considering unitary transformations acting on Hermitian observables, a…Huan-Hsin Tseng, Hsin-Yi Lin, Samuel Yen-Chi Chen et al.·Jul 22, 2026SaveLearn
Mesoscopic mechanical superpositions by gluing individual quantum systemsWe propose a protocol for preparing mechanical Schrödinger kittens -- mesoscopic quantum superpositions of coherent motional states of an optically levitated nanoparticle -- by adhering single…Thiago Guerreiro·Jul 22, 2026SaveLearn