Coherence controls the visibility of frozen disorder in an open quantum chainA Gaussian position distribution need not imply that frozen disorder is irrelevant. We study a resonant quantum chain where neighboring sites couple with opposite signs to auxiliary states that decay…S. Y. Li, M. H. Yu, X. Z. Zhang·Oct 31, 2026SaveLearn
Leaving Quantum Bias on the Table: Pushforwards as a Path to Quantum Advantage in Constrained OptimizationConstrained quantum samplers often produce infeasible outputs that retain information about good feasible solutions. We develop a post-measurement framework that constructs problem-dependent…Chinonso Onah, Stuart Hadfield, Kristel Michielsen·Oct 31, 2026SaveLearn
Quantum algorithm for weakly correlated molecular electronic ground states with sub-quintic scaling in the system sizeWeakly correlated electronic structures are predominant among molecules, and are routinely solved with heuristic classical methods such as the ``gold standard'' CCSD(T) coupled cluster model,…Oskar Leimkuhler, Marvin Kronenberger, Davide Castaldo et al.·Oct 31, 2026SaveLearn
Photon-loss tolerance of the surface-GKP code with anti-photon-loss decodingPhoton loss somewhat limits fault-tolerant photonic quantum computing. We investigate its effect on finite-energy Gottesman--Kitaev--Preskill (GKP) states by modeling the pure-loss channel directly.…Guan-Ju Yan, Pei-Lin Du, Ke-Min Hu et al.·Oct 31, 2026SaveLearn
Iterative Quantum Optimization: From Greedy Reductions to Branch-and-BoundIterative quantum optimization (IQO) uses quantum-generated information to select a sequence of classical problem reductions. We introduce Bound-Aware Tree-IQO which combines this iterative structure…Stuart Hadfield, Lucas T. Braydwood, Eleanor Rieffel·Oct 31, 2026SaveLearn
Discovering Models for Experimental Quantum Systems with Agentic AIA central obstacle in realizing color center cavity-QED-based quantum technologies is inhomogeneity, or disorder, among individual emitters. As the number of emitters increases, so does the…Hannah C. Kleidermacher, Bennet Windt, Miguel Bello et al.·Oct 31, 2026SaveLearn
Compressed Oracle Duality: A simple framework for knowing what quantum adversaries knowGiven a quantum adversary that queries a random oracle, how do we characterize the information that they "know"? The Compressed Oracle method of Zhandry (CRYPTO 2019) is one method that…Matthew Ding, Mark Zhandry·Oct 31, 2026SaveLearn
Implications of the PXP ground-state sign structure for neural-network variational Monte CarloPositive-definite neural-network quantum states cannot directly represent the ground state of the PXP Hamiltonian, since the ground-state wavefunction carries a nontrivial relative-sign structure.…Jun Sur Richard Park, Kwangmin Yu·Oct 31, 2026SaveLearn
Enhanced shortcuts to adiabaticity in an interacting giant-atom-atomic-waveguide systemIn realistic quantum systems, isolated few-level models usually provide only an approximate description, since the controlled subsystem is generally coupled to additional degrees of freedom. As a…Ruijin Sun, Zhihai Wang, Andreas Ruschhaupt·Oct 31, 2026SaveLearn
The exact information cost of randomized measurements in quantum metrologyRandomized measurements provide state-independent readout for multiparameter quantum sensing. Although 3-designs retain a constant fraction of the quantum Fisher information (QFI) for every pure…Wanqing Li, Jiaxin Liu·Oct 31, 2026SaveLearn
Scaling Laws for Parameter Setting in Digitized Counterdiabatic QAOAOptimizing parameters separately for each problem instance limits the reuse of variational quantum algorithms. We develop empirical scaling laws for parameter setting in the digitized counterdiabatic…Yaocheng Chen, Jiapei Zhuang·Oct 31, 2026SaveLearn
Ultra-broadband quantum infrared spectroscopy extending to 20 mQuantum infrared spectroscopy (QIRS), which exploits quantum interference between photon-pair generation processes, enables infrared spectroscopy using only visible and near-infrared (VNIR) light…Yu Mukai, Ryo Okamoto, Shigeki Takeuchi·Oct 31, 2026SaveLearn
Optimal Estimation in Weak Value Amplification with a Position PointerWe experimentally evaluate five estimators for weak-value amplification (WVA) using a position pointer to measure birefringence time delays. Two general approaches are considered: measuring the…Jing-Hui Huang, Jing Zhang, Jian Ge et al.·Oct 31, 2026SaveLearn
Detector Placement Relaxes Efficiency Requirements for Detecting a Weak Coherent LinkA weak coherent link can produce unusually early arrivals without changing stationary count rates. Missed jumps along routes available without the link can produce similar records, obscuring its…M. H. Yu, S. Y. Li, X. Z. Zhang·Oct 31, 2026SaveLearn
Quantum banking system for secure cash withdrawalA quantum-secure withdrawal framework is presented by replacing reproducible classical credentials with quantum tokens for authentication. The protocol integrates token generation, authentication,…Vineet Kumar·Oct 30, 2026SaveLearn
Measurement-angle control of a continuously monitored quantum oscillator: purification limits and optimal protocolsWe study the dynamic purification of a continuously monitored quantum harmonic oscillator coupled to a thermal bath, where the control is the quadrature measurement angle of up to two detectors with…Ralph Sabbagh, Olga Movilla Miangolarra, Andrew N. Jordan et al.·Oct 30, 2026SaveLearn
Early Fault-Tolerant Magic State Synthesis and Spacetime Efficient Analog Rotations with Color Code on a Superconducting Quantum ProcessorWith recent improvements to syndrome extraction scheduling and decoding, and the availability of complete transversal Clifford operations and lattice surgery, color code is an especially promising…Sean Garner, Aaron Hoyt, Shuwen Kan et al.·Oct 30, 2026SaveLearn
Zero mode, Zero influence: Spatial-derivative coupling in particle detectorsIt is common in particle detector models in cavity QED to often omit zero modes or assume their state, compromising causality or introducing ambiguity in their predictions. We show that…Eduardo Martín-Martínez, Ireneo James Membrere, Adam Teixidó-Bonfill·Oct 30, 2026SaveLearn
Application a quantum machine learning algorithm to the applied problem of modeling the thermal regime of a serversQuantum computing is a rapidly developed field of science. In the NISC era, quantum machine learning stands out, potentially outperforming classical machine learning. In this paper, we explore the…P. V. Buzin, M. A. Remnev·Oct 30, 2026SaveLearn
Triple descent in quantum linear regressionQuantum linear regression models, such as quantum extreme learning machines and quantum fidelity kernels, are trained on features that can only be estimated from finitely many measurement shots.…Gabriele Lo Monaco, Salvatore Lorenzo, Alessandro Ferraro et al.·Oct 30, 2026SaveLearn
Benchmarking Quantum Convolutional Neural Networks and their classical surrogates on long-range strongly correlated modelsWe benchmark quantum convolutional neural networks (QCNNs) and their classical surrogates for phase differentiation in one-dimensional strongly correlated systems with beyond-nearest-neighbour terms.…Tatiana A. Bespalova, Réka Schwengelbeck, Laura Mismetti et al.·Oct 30, 2026SaveLearn
Distance to integrability and complexityWe consider nearest-neighbour interactions on spin-1/2 chains. We find the full set of integrable models of this form and apply a numerical algorithm to determine the "closest" integrable…Sean Casey, Marius de Leeuw, Tristan McLoughlin et al.·Oct 30, 2026SaveLearn
Exhaustive Construction of Generalized Parent Hamiltonians for Matrix Product StatesCharacterizing local Hamiltonians that host interesting many-body states as eigenstates has been an important problem in quantum many-body physics. For matrix product states (MPS), there is a…He-Ran Wang, Lorenzo Gotta, Sanjay Moudgalya·Oct 30, 2026SaveLearn
Quantum simulation of real-time Yukawa dynamics with qubits and qumodesReal-time quantum simulation of field theories offers access to scattering and decay dynamics, circumventing the limitations of Euclidean lattice methods. However, representing bosonic fields on…Jack Y. Araz, Jeffrey Forshaw, Ross Jenkinson·Oct 30, 2026SaveLearn
Secret-shared teleportation of a two-qudit gate with a deferred recipientAn unknown quantum operation, like an unknown quantum state, cannot be perfectly copied or stored for later use. A specific gate can be embedded in an entangled resource and teleported, but its…Tanay Roy·Oct 30, 2026SaveLearn