Anomalous superradiant phases in a quantum Rabi zigzag chain under a synthetic gauge fieldWe present the phase diagram of a one-dimensional quantum Rabi zigzag chain under an artificial gauge field, which is implemented via phase-modulated next-nearest-neighbor (NNN) hopping. For a system…Jun-Bo Tang, Lin-Jun Li, Bin Wei et al.·Oct 30, 2026SaveLearn
Quantum query complexity of Hurwitz stability testingDetermining whether every trajectory of the linear system x=Ax converges to zero (or, equivalently, whether A is Hurwitz stable) is a fundamental problem in control theory. It arises, for…Maxwell Fitzsimmons, Mohamed Serry, Meenu Kumari et al.·Oct 30, 2026SaveLearn
Encoded reversible addition in constant Toffoli depthWe show that reversible in-place quantum addition modulo 2n-1 can be implemented in constant Toffoli depth using O(n) space, provided that the variables are encoded in a certain non-standard…Aidan Epperly, Isaac H. Kim, Mingyu Lee·Oct 30, 2026SaveLearn
Probing Operator Spreading with Local Quantum FluctuationsMeasuring out-of-time-ordered correlators (OTOCs) is experimentally challenging, often requiring effective reversal of many-body dynamics. Here, we propose an alternative approach to probing operator…Bertúlio de Lima Bernardo·Oct 30, 2026SaveLearn
Entangled Measurement Outcomes for Optimal Postselection in Quantum BatteriesPostselection can enhance the performance of a selected quantum battery branch, raising the question of whether the optimum can always be achieved by product measurements on the auxiliary subsystems.…Yali Du, Zhipei Zhou, Xiaoli Hu·Oct 30, 2026SaveLearn
Quantum Vehicle Routing Problem: a smart initialization strategy for ill-conditioned optimization landscapesWith the expansion of complex transport infrastructure, new paths for linking different destinations have emerged, allowing the definition of multiple routes. The introduction of new roads may also…Emanuele Casciaro, Mario De Simone, Stefano Martina et al.·Oct 30, 2026SaveLearn
Rényi-2 entanglement of purification of the symmetric Werner stateThis paper determines exactly the Rényi-2 entanglement of purification of the normalized symmetric Werner state in every local dimension d2 equation*…Shokoufe Faraji·Oct 29, 2026SaveLearn
Vacuum amplification across a programmable bosonic Bogoliubov stability boundary in a trapped-ion chainA quantum oscillator always carries vacuum fluctuations, and modulating its parameters converts them into correlated pairs of real quanta. This vacuum amplification underlies squeezed light and…Lu Qi, Duanyang Wang, Kenneth R. Brown·Oct 29, 2026SaveLearn
Preparation of a Laughlin-like fractional Chern insulator on a superconducting quantum processorFractional Chern insulators (FCIs) are lattice analogues of fractional quantum Hall states, hosting topological order and fractionalized anyonic excitations. Their realization poses a demanding…Kamil Dutkiewicz, Bárbara Andrade, Geza Giedke et al.·Oct 29, 2026SaveLearn
Variational Programs with Open ClocksVariational quantum algorithms leave the durations of Hamiltonian evolutions open for a classical optimizer to set. We present VHamilton, a minimal extension of the Hamilton quantum programming…Javaria Ghafoor, Amr Sabry·Oct 29, 2026SaveLearn
Hypergraph cycle enumeration for efficient inference of planted k-XOR with smooth trade-offWe introduce hypergraph cycle enumeration (HCE), a simple spectral framework for detecting and recovering planted signals in noisy hypergraph inference problems. We study HCE on one representative…Arman Babakhani, Enrico Fontana, Junhyung Lyle Kim et al.·Oct 29, 2026SaveLearn
Optical Quantum Memory Processing for Quantum HashingSender authentication is an important requirement for secure quantum communication networks. We propose programmable photon-echo quantum memory processing of a multi-time-bin photonic qudit for…S. A. Moiseev, M. M. Minnegaliev·Oct 29, 2026SaveLearn
Clifford synthesis is NP-completeWe show that the problem of synthesizing a quantum circuit for a given Clifford operator using at most a specified amount of resources is NP-complete for several resource models of practical…Søren Fuglede Jørgensen·Oct 29, 2026SaveLearn
Colloquium: Quantum information processing with ensembles of identical particlesIdentical particles underpin most quantum technologies, but the role of indistinguishability in these processes extends far beyond the symmetrization of many-particle states. This Colloquium presents…Matteo Piccolini, Marcin Karczewski, Jin-Shi Xu et al.·Oct 29, 2026SaveLearn
Predictive Maintenance at the Edge: An Embedded Anomaly Detection Pipeline Trained with Quantum OptimizationThis article presents a predictive-maintenance pipeline that detects anomalies in bearings from vibration signals, adapted for deployment at the edge on low-cost microcontrollers, and that uses…Filipe Chagas Ferraz·Oct 29, 2026SaveLearn
Electronic-Structure-Informed Many-Body Encoding for Quantum Machine LearningData encoding is a central challenge in quantum machine learning (QML), as it determines how classical information is mapped onto quantum states and influences the expressive power and efficiency of…Liangnuo Zhang, Tanner Culpitt, Qiwei Yin et al.·Oct 29, 2026SaveLearn
Witnessing and quantifying stellar rank with the Wigner functionQuantifying non-Gaussianity is essential for assessing the computational power of bosonic quantum systems. We introduce a framework to witness and quantify non-Gaussianity from displaced parity…Oliver Hahn, Alex Maltesson, Varun Upreti et al.·Oct 29, 2026SaveLearn
Beyond the Kubo formula: unification of adiabatic and isothermal response in quantum systemsThe static limit of the Kubo susceptibility describes the adiabatic response of an isolated quantum system, in which energy-level occupations remain unchanged, and generally differs from the…Giuliano Chiriacò, Vasco Cavina·Oct 29, 2026SaveLearn
Liouvillian spectral snapshots: A reduced-subspace approach for time-dependent and noisy open quantum systemsDriven-dissipative quantum devices are routinely operated with time-dependent drives and exposed to temporally correlated classical noise. When these perturbations vary on timescales comparable to…Hans Christiansen, André Melo, Jens Paaske et al.·Oct 29, 2026SaveLearn
Fock-space delocalization and its control in scarred-vs-ergodic dynamicsQuantum many-body scarred dynamics in Rydberg-atom arrays is characterized by revivals, in which the system repeatedly returns to its initial state despite its many-body complexity. But how…Francesco Perciavalle·Oct 29, 2026SaveLearn
A Universal Approach to Hydrodynamics in Higher Dimensions via Tensor NetworksExtracting late-time hydrodynamic transport properties directly from microscopic quantum models, especially in dimensions beyond one, is believed to be classically intractable. This owes, in part, to…Sajant Anand, Christopher D. White, Jack Kemp et al.·Oct 29, 2026SaveLearn
Quantum manifestations of converse symmetry breakingQuantum synchronization holds promise in advancing quantum technologies such as sensing, communication, and computation. A key challenge in this rapidly developing field is to identify mechanisms…Daniel P. Buser, Biswabibek Bandyopadhyay, Adilson E. Motter·Oct 29, 2026SaveLearn
Reconstructing hidden observables via quantum snapshot thermometryProjective snapshots are a standard readout tool for quantum simulators, but they directly probe only observables that are diagonal in the measurement basis. We show how local equilibration and an…Jie Ren, Andrew Hallam, Luheng Zhao et al.·Oct 29, 2026SaveLearn
Comparison of entangling strategies for unitary synthesisTrapped-ion quantum computers are promising as a platform for realizing quantum computational advantage. They promise long coherence times, near all-to-all connectivity, and potential multiqubit…Jonas Wunder, Hendrik Weimer, Ricardo Costa de Almeida·Oct 29, 2026SaveLearn
Entanglement diagnostics of stochastic-resetting steady states: theory and measurement on superconducting qubitsStochastic resetting drives quantum systems into nonequilibrium stationary states unreachable under uninterrupted unitary evolution, and their entanglement depends on whether the reset history is…Jakob Murauer, Sabine Tornow, Manas Kulkarni et al.·Oct 29, 2026SaveLearn