Optimizing Atom Transport, Gate-Count and Depth with Parity TwineWe present an efficient implementation of the Parity Architecture for neutral-atom quantum processors. We adapt Parity Twine Networks (PTNs) to different atom layouts, native entangling gates, and…Javad Kazemi, Michael Fellner, Riccardo J. Valencia-Tortora et al.·Sep 3, 2026SaveLearn
Enhancing noise robustness in device-independent conference key agreement with asymmetric parity-CHSH inequalitiesConference key agreement allows multiple remote parties to establish a shared secret key with information-theoretical security. In device-independent conference key agreement, security can be…Makoto Ishihara, Wojciech Roga, Jonatan Bohr Brask et al.·Sep 3, 2026SaveLearn
Pulse-Controlled Topologically Protected Quantum BatteriesQuantum batteries have emerged as a promising new generation of energy-storage devices for powering quantum technologies. Long-distance charging is particularly attractive because it minimizes…Jin Yang, Biao Xiong, Jibing Liu et al.·Sep 3, 2026SaveLearn
Heralded one-, two- and three-photon states from waveguided parametric down-conversionThe manifold coincidences and singles counting provides a resource-saving quantum-optics analysis tool, since it is appropriate even in the presence of heavy experimental imperfections. Here, we…Borrero Landazabal Daniel, Laiho Kaisa·Sep 3, 2026SaveLearn
Topology-Dependent Enhancement of Entanglement Extraction in Repeater Graph StatesQuantum repeaters are essential for establishing long-distance quantum communication to overcome the exponential decay of entanglement due to photon loss. Traditional repeater architectures rely on…Poramat Chianvichai, Poramet Pathumsoot, Naphan Benchasattabuse et al.·Sep 3, 2026SaveLearn
Weakly Driven and Finite Detuning Boundary Time Crystals Enabled by Low-Dissipation Dynamical ChannelsSpontaneous breaking of continuous time-translation symmetry in driven-dissipative systems gives rise to boundary time crystals (BTCs), characterized by persistent oscillations sustained by coherent…Xiang Guo, Xiaojun Zhang, Zhihai Wang·Sep 3, 2026SaveLearn
Convolution absorbing boundaries for explicit-circuit quantum simulation of the wave equationExplicit quantum circuits for the wave equation, built by Hamiltonian simulation, are restricted to closed domains, in which outgoing waves reflect off the edge of the computational region and…Hoang Anh Nguyen, Ali Tura·Sep 3, 2026SaveLearn
Tunable topological enhancement of covariant quantum Fisher information via non-Bloch skin effect in non-Hermitian SSH latticesThe covariant quantum Fisher information (CQFI) has recently been established as the ultimate precision benchmark for pseudo-Hermitian sensors [Phys. Rev. Lett. 136, 080802 (2026)], yet existing…Qi-Cheng Wu, Yan-Hui Zhou, Tong Liu et al.·Sep 3, 2026SaveLearn
In defence of the Ehrenfest mean-field molecular dynamicsRe-visiting the problem of the coupled electronic--nuclear motion, we prove that the so called `mean-field' Ehrenfest picture is an exact theory, rather than an approximation, in the classical…Vladimir U. Nazarov·Sep 3, 2026SaveLearn
An interpretation-independent formulation of the measurement problemIn this paper, we do not try to solve the measurement problem, but rather to properly formulate it. One of the reasons why it still lacks a precise, agreed definition is that the problem may take…Antoine Soulas·Sep 3, 2026SaveLearn
Nonlinear Dissipation and Hopf Criticality in Driven Dissipative Collective SpinsSelf-sustained oscillations combine finite-amplitude stabilization with a neutral phase degree of freedom. We develop this bifurcation-based framework for driven-dissipative collective spins and show…Shu Yang, Jun Wang, Weidong Li et al.·Sep 3, 2026SaveLearn
Redesigning quantum theoryQBism understands quantum mechanics to be probability theory supplemented by additional nonclassical coherence conditions. In this dissertation, we develop these nonclassical coherence conditions…Matthew B. Weiss·Sep 3, 2026SaveLearn
Variable-Cliff Nielsen Geometry and an Exponent -4/3 Lower Bound for the Infinite-Cliff DiameterLet D=2n and M=3n+9 n2. We study the right-invariant one-step-cliff metric dQ on PU(D), with unit penalty on Pauli weights one and two and penalty Q on all higher…Honghuai Fang·Sep 3, 2026SaveLearn
Efficient Estimation of Reduced QAOA Expressibility on Acyclic GraphsClassically equivalent formulations of an optimization problem need not lead to equivalent quantum algorithms. For MaxCut, fixing the value of a single vertex removes a simple global symmetry without…Bao Bach, Boris Tsvelikhovskiy, Jose Falla et al.·Sep 3, 2026SaveLearn
Quantum Vacuum Nonlinearities in Laser InterferometersWe propose all-optical tests of photon-photon interactions in the matter vacuum using standing-wave laser interferometers, which do not require external magnetic fields and use conventional laser…Zain Mehdi, Joseph J. Hope, Simon A. Haine·Sep 3, 2026SaveLearn
Discrete-time quantum walks with energy-dependent coinsIn this work, we extend the scattering quantum walk (SQW) framework to a lattice of energy-dependent point interactions. This yields, within the coined quantum walk (CQW) formalism, a coin operator…Alana Spak dos Santos, Thiago T. Tsutsui, Fabiano M. Andrade·Sep 3, 2026SaveLearn
Nodal obstruction to conditioned-diffusion representations of the weak momentumQuantum Schrödinger bridge constructions establish the existence of a conditioned process under a positivity hypothesis on the endpoint data, and three independent ones adopt it. We show that…Chon-Fai Kam, Kai-Wen Wong·Sep 3, 2026SaveLearn
Quantum Complexity in Nuclear Scattering and Fission DynamicsQuantum computers promise advantages for simulating strongly correlated quantum many-body systems, like atomic nuclei, that are beyond the reach of classical computers. Realizing this potential…Saurabh V. Kadam, Antonio Bjelčić, Nicolas Schunck et al.·Sep 3, 2026SaveLearn
Revealing Many-Body Phases at finite temperatures through Quantum Coherence DistributionWe introduce a diagnostic framework based on the full probability distribution of quantum coherence to probe single-particle and many-body phases at finite temperature. We first apply this approach…Antonio Palamara, Nicola Lo Gullo, Antonello Sindona et al.·Sep 3, 2026SaveLearn
Discretization-Aware Fine-Tuning for Quantum Machine Learning with Chemical Foundation ModelsA key challenge in practical quantum machine learning (QML), particularly for discriminative tasks such as classification, is the limited capacity of near-term quantum devices to encode…Shunji Matsuura, Sonika Johri·Sep 2, 2026SaveLearn
Experimental validation of a compact fault-tolerant architecture for trapped ionsQuantum error correction (QEC) is beginning to enable logical operations that outperform their unencoded physical counterparts, but useful fault-tolerant computation will require more than low-error…Noah Berthusen, Ali Lavasani, Asmae Benhemou et al.·Sep 2, 2026SaveLearn
Optimal control theory for measured quantum Schrödinger bridgesSchrödinger bridges and entropic optimal transport are usually formulated as stochastic interpolation problems between initial and final probability distributions. In their computational form, the…Masayuki Ohzeki, Andrew N. Jordan·Sep 2, 2026SaveLearn
Non-Kolmogorov-Arnold-Moser Quantum Sensors for Quantum Parameter EstimationNon-KAM (Kolmogorov-Arnold-Moser) systems, when subjected to weak time-dependent perturbations, exhibit an abrupt transition to classical chaos through the breakdown of invariant phase-space tori. We…Naga Dileep Varikuti, Sourav Manna, Athreya Shankar et al.·Sep 2, 2026SaveLearn
Optimized Matrix-Product State Simulations of Quantum Error Correction CircuitsSimulating quantum error correction (QEC) circuits including non-Clifford gates at scale is important to accelerate progress toward fault-tolerant quantum computing. Here we demonstrate that matrix…Asier Piñeiro Orioli, Chen Zhao, Guido Masella et al.·Sep 2, 2026SaveLearn
Distinctness threshold for pseudorandom unitariesPseudorandomness is increasingly recognized as a key property of ensembles in quantum information theory, statistical mechanics, and quantum many-body physics. Yet it appears in two conceptually…Asad Raza, Jens Eisert, Bill Fefferman·Sep 2, 2026SaveLearn