State-independent uncertainty relations on multipartite spin 1/2-systemsUncertainty relations quantify fundamental limits on simultaneous measurement of quantum observables. While conventional formulations are state-dependent, state-independent uncertainty relations…Yiling Wang, Kailash Misra, Naihuan Jing·Jul 15, 2026SaveLearn
Unified monogamy and polygamy relations for multipartite systemsFor a bipartite entanglement measure E that satisfies the γth-power monogamy inequality (Eq.~e:chap1-ineq1), and for its assisted counterpart Ea that obeys the…Yue Cao, Naihuan Jing, Kailash Misra et al.·Jul 15, 2026SaveLearn
Collapse and Inversion of the Josephson Potential in a Strongly Driven Superconducting CircuitSuperconducting circuits embedding Josephson junctions leverage microwave drives for control and measurement of quantum states. Although increasing the drive power is desirable for improving the…Sercan Deve, Marius Villiers, Marijn A. Morssink et al.·Jul 15, 2026SaveLearn
Towards a monolithic platform for coupling superconducting circuits to low-loss microwave phonons in AlScN on 4H-SiCHybrid superconducting-phonon quantum processing is promising for cavity QED, measurement-based quantum computing, and other quantum applications. Relative to microwave photons at the same frequency,…Yuanchen Deng, William W. Roberts, Sueli Skinner-Ramos et al.·Jul 15, 2026SaveLearn
Disorder-enhanced compressibility of Floquet random quantum circuitsCurrent quantum hardware is limited by noise and decoherence, which restrict the depth of unitary circuits that can be implemented with high fidelity. We investigate how the compressibility of…Francesca De Franco, Dante M. Kennes, David J. Luitz et al.·Jul 15, 2026SaveLearn
Real-Time Detection of Charge Jumps in Superconducting Qubits with a Convolutional Neural NetworkIonizing radiation from cosmic rays and gammas can induce discontinuous jumps in the environmental charge of superconducting qubits (charge jumps), causing correlated errors that challenge…Daniel Gaytan-Villarreal, Peter Meiring, Daniel Baxter et al.·Jul 15, 2026SaveLearn
Worldline-Susceptibility Scheduling for Quantum Annealing Beyond Local-Adiabatic EvolutionThe performance of quantum annealing depends critically on how the available annealing time is distributed along the evolution. Although the Roland Cerf local adiabatic schedule is theoretically…Suraj Singh, Lakshya Nagpal, Vikas Chauhan et al.·Jul 15, 2026SaveLearn
Fock-state preparation based on amplitude amplification in cavity QEDIn this work, we develop a coherent control technique for cavity QED based on amplitude amplification. We consider two physical platforms. In the first setting, we study a three-level quantum emitter…Sharoon Austin, Zhi-Yuan Wei, Kartik Srinivasan et al.·Jul 15, 2026SaveLearn
A Compass on the Quantum State Sphere: The Hopf Ansatz for Arbitrary Pure-State OptimizationOptimizing arbitrary quantum state vectors is like navigating the unit sphere in Hilbert space: beyond target reachability, optimization asks for coordinates, local distance information, and…Ruge Lin, Guangxi Li·Jul 15, 2026SaveLearn
Nonplanar qubit with tunable gauge symmetryCircuit quantum electrodynamics embeds Josephson junction qubits within superconducting cavities, and has emerged as a leading approach to quantum computing and quantum simulation. Despite the many…Muqing Yu, Han Bi, Hengli Lo et al.·Jul 15, 2026SaveLearn
Principles of Quantum Optimization for Constrained ProblemsConstrained combinatorial optimization underlies many industrial and technological decision problems. We develop a spectral theory that unifies many quantum optimization algorithms. We show that…Einar Gabbassov, Gurpahul Singh, Achim Kempf·Jul 15, 2026SaveLearn
Quantum many-body mixed phase space revealed by hybrid feedback controlUnderstanding how complex systems transition between order and chaos is a central challenge of nonequilibrium physics. While weak perturbations of classical integrable systems give rise to a mixed…Hang Dong, Jie Ren, Andrew Hallam et al.·Jul 15, 2026SaveLearn
Analytic gradients for low-rank quantum optimal controlWe introduce low-rank optimal control (LROC), a method for designing control pulses in open quantum systems whose full density-matrix simulation is prohibitively expensive. The method exploits a…Leo Goutte, Vincenzo Savona·Jul 15, 2026SaveLearn
Benchmarking quantum simulation at scaleThe applications for which quantum computers will clearly outperform classical computers are still being identified and benchmarking such an advantage is challenging. We propose a scalable…Jeremy Hartse, Mohsin Raza, Shravan Shravan et al.·Jul 15, 2026SaveLearn
Trigonometric Continuous-Variable Quantum Gates: Realization with Trapped Ions and Nonperturbative Wigner NegativityWe experimentally realize trigonometric continuous-variable gates on a trapped-ion processor, for which a motional mode acquires a phase proportional to the cosine of its position quadrature, and,…Tommaso Rainaldi, Jake Montgomery, Christopher G. Yale et al.·Jul 15, 2026SaveLearn
Cluster-configurational study of G-center in SiliconUnderstanding the properties of defects is imperative for proper use for variety of applications including quantum computing. In this paper, we use the multiconfigurational self consistent field…Narayan Pokhrel, Kyungwha Park, Vsevolod Ivanov·Jul 15, 2026SaveLearn
Building Shor's Algorithm in Lean: An Agentic Formalization of Quantum Attacks on RSA-2048 and P-256Large language models are increasingly assisting with demanding formal theorem-proving tasks, particularly when grounded in machine-checked libraries such as Lean. Agentic systems further amplify…Lei Zhang, Yusheng Zhao, Hongshun Yao et al.·Jul 15, 2026SaveLearn
Reshaping quantum annealing landscapes with diagonal catalystsQuantum annealing is often limited by population trapped in local minima many spin flips from the solution. We introduce a mathematical framework to understand the connection between energy and…Andrés N. Cáliz, Carlos Ramon-Escandell, Finnley Paolella et al.·Jul 15, 2026SaveLearn
Nonreciprocal Relaxation AccelerationDriven by recent discoveries regarding the quantum Mpemba effect, the anomalous relaxation dynamics of open quantum systems have garnered significant attention. While expediting thermalization to…Xingyu Zhang, Yihan Ma, Yue Liu et al.·Jul 15, 2026SaveLearn
Universal Quantum Computation with Multi-Mode Schrödinger Cat States Stabilized by Non-Local Dissipation EngineeringSchrödinger cat states provide a hardware-efficient platform for bosonic quantum error correction by encoding logical information in protected manifolds of harmonic oscillators. While previous work…Jesper Lind-Olsen, Jonas Lidal, Tron Omland et al.·Jul 15, 2026SaveLearn
Quantum observables for probabilistic classical particlesThe classical observables of position and momentum are not well adapted to particles in a microphysical situation where typical probability distributions are characterized by a substantial…Christof Wetterich·Jul 15, 2026SaveLearn
A Reservoir Computing Approach to Quantum Gate SynthesisQuantum gate synthesis is essential for implementing quantum algorithms on real hardware, yet existing methods are often computationally demanding. Here, we introduce a novel approach based on…Francesco Caravelli, Roberto Menta, Antonio Sannia·Jul 15, 2026SaveLearn
Continuous limit of the square well problem in quantum mechanicsThe free-particle and square-well potentials are two of the most emblematic problems in quantum mechanics, illustrating essential concepts such as matter waves, energy quantization, and bound states.…Matheus D. Moro, Thiago T. Tsutsui, Antonio S. M. de Castro et al.·Jul 15, 2026SaveLearn
A Lie-algebraic approach to non-Markovian quantum dynamicsIn this paper, we study the non-Markovian quantum dynamics in quantum computations from the perspective of a Lie algebraic approach based on numerical analysis. By vectorizing the density matrix of…Haijin Ding, Stephen S. -T. Yau, Zhiwen Zhang·Jul 15, 2026SaveLearn
Quantum Topological Data EncodingMany datasets encountered across a wide range of domains possess rich geometric and topological structure that is difficult to capture using conventional vector-based representations. Quantum machine…Adam Wesołowski, Dimitrios Thanos, Daniel Leykam et al.·Jul 15, 2026SaveLearn