Optimal Quantum Eigenvalue Transformation via Linear Combinations of Hermitian MatricesWe discover two complementary linear-combination-of-Hermitian-matrices (LCHM) formulations to achieve a general non-normal matrix eigenvalue transformation g(A). Firstly, for A=L+i H…Yanqiao Wang, Yixuan Liang, Hongjia Chen et al.·Jul 28, 2026SaveLearn
Efficient Lindbladian Learning from Constant-Time Pauli ResponsesLearning the generator of an open many-body system is more challenging than Hamiltonian learning: local responses, which can directly reveal coherent interaction terms in closed-system dynamics, may…Jiaxing Song, Yukun Zhang, Xiao Yuan et al.·Jul 28, 2026SaveLearn
Exponential de Finetti Theorems for Fermionic Gaussian StatesWe prove an exponential variant of the Gaussian de Finetti theorem: the subsystems of permutation-invariant, free-fermionic Gaussian states are well-approximated by convex combinations of…Jędrzej Burkat, Michał Studziński, Sergii Strelchuk·Jul 28, 2026SaveLearn
Classically Augmented Zero-Noise ExtrapolationWe investigate a hybrid quantum-classical approach to quantum error mitigation. We propose Classically Augmented Zero-Noise Extrapolation, a hybrid error-mitigation method in which high-noise…Timon Scheiber·Jul 28, 2026SaveLearn
Verifiable blind probabilistic error cancellationQuantum error mitigation (QEM) is an essential tool for mitigating hardware noise without incurring space overhead. Yet, its reliability depends on modeling, calibration, and implementation, leaving…Bo Yang, Elham Kashefi, Harold Ollivier·Jul 28, 2026SaveLearn
Benchmarking Optical Receivers for Quantum Communication and Randomness CertificationThe choice of optical receiver determines which properties of the transmitted states remain visible in the observed data and therefore affects the performance of different quantum protocols. We…Hamid Tebyanian·Jul 28, 2026SaveLearn
Counterfactual Quantum Sensing: What Interaction-Free Measurement Can and Cannot BuyInteraction-free measurement infers the presence of an absorbing object from a photon that, in the counterfactual sense, never interacted with it, and is widely described as a route to minimally…Christoph F. Wildfeuer·Jul 28, 2026SaveLearn
Landau Levels on the Surface of a CubeWe study the quantum mechanics of a charged particle confined to the surface of a cube enclosing a magnetic monopole. The magnetic field is chosen to have a constant magnitude on each face and to…Almila Kura, Bayram Tekin, Mehmet Özgür Oktel·Jul 28, 2026SaveLearn
Engineering a Quantum Thermal Diode with Floquet DrivingControlling heat flow in small quantum systems is a central goal of quantum thermodynamics and nanoscale transport. A key challenge is to achieve strong thermal rectification without suppressing the…Aqsa Rehman, M. Tahir Naseem, Adam Zaman Chaudhry·Jul 28, 2026SaveLearn
Discrete power-law decay of subsystem distance after a quantum quenchWe present a numerical study of subsystem distance decay following a global quantum quench in the infinite one-dimensional transverse-field Ising chain, using the mathematically rigorous Bures…Bin Sui, Jiaju Zhang·Jul 28, 2026SaveLearn
Nonlocal Magnonic Cat States in Hybrid Magnon-Qubit ArchitecturesThe quantum superpositions of coherent states offer an alternative to the conventional qubit-based encodings by harnessing the large Hilbert space available in bosonic modes, including those realised…Urmimala Dewan, Roson Nongthombam, Sampreet Kalita et al.·Jul 28, 2026SaveLearn
Coherent control of subradiant excitations in atomic ringsCollective excitations in ordered subwavelength atomic arrays can exhibit strongly suppressed radiative decay due to interference between light scattered by neighboring emitters. These so-called…Milena Djatchkova, Igor Lesanovsky, Beatriz Olmos·Jul 28, 2026SaveLearn
Theory of Cubic-Phase Dynamics in the Linear PotentialA quantum wave packet in a linear potential, i.e., under a constant force such as gravity, accumulates a cubic-in-time phase that is universal across Schrodinger-type platforms and naturally realized…Maximilian L. D. D. Pellner, Georgi Gary Rozenman·Jul 28, 2026SaveLearn
Interaction-Endowed PT-Symmetry and its Effects on Decoherence, Einselection, and Non-Markovianity in a Central Spin ModelWe have introduced PT-symmetry to a central spin model by adding a PT-symmetric interaction with a tunable hermiticity parameter γ. Using the pseudo-Hermitian formalism, we applied a Dyson map to…Leoj Phoebe M. Esquierdo, Lemuel John F. Sese, Rayda P. Gammag·Jul 28, 2026SaveLearn
Collective states of multi-level emitters: The role of multi-level interferencesWe explore how collective states of light and matter differ when the multi-level nature of the quantum emitters is fully taken into account. For closely spaced emitters, interferences between…Nathan E. Rahat, Christiane P. Koch·Jul 28, 2026SaveLearn
Automated discovery of high-probability heralded schemes for path-entangled statesEntangled states of light lie at the heart of photonic quantum technologies, from distributed quantum communication to quantum-enhanced measurement and information processing. Their practical…Marcello Armezzani, Colin P. Lualdi, Xuemei Gu et al.·Jul 28, 2026SaveLearn
A General First- and Second-Order Numerical Solver for Non-Markovian Quantum State DiffusionThe numerical simulation of non-Markovian open quantum systems based on the non-Markovian quantum state diffusion (NMQSD) equation is complicated by functional derivatives with respect to the…Zhenning Cai, Quanhui Zhu·Jul 28, 2026SaveLearn
Quantum Teleportation toward the Quantum Internet: A Concise ReviewQuantum networks play a pivotal role in quantum information science, which not only provide a secure communication platform for remote access to quantum computers but also serve as the strategic core…Yang-Bin Ma, Yun-Ru Fan, Ri-Yao Song et al.·Jul 28, 2026SaveLearn
Quantum teleportation over a field-deployed hollow-core fibre networkWhen a photon and one member of an entangled photon pair are jointly projected onto a Bell-state measurement (BSM), the quantum state of the photon can be transferred to the distant partner of the…Ri-Yao Song, Ya-Zhou Zhao, Yun-Ru Fan et al.·Jul 28, 2026SaveLearn
Detecting quantum phase transitions via shallow variational quantum circuitsMapping quantum phase diagrams through classical simulation is notoriously resource-intensive, as even small systems far from the thermodynamic limit demand prohibitive computational effort. The…Ching-Yu Huang, Min-Fong Yang·Jul 28, 2026SaveLearn
Remote entanglement of massive oscillators via wire-mediated Coulomb interactionWe propose a method to enhance Coulomb interaction between charged macroscopic mechanical oscillators by placing a conducting structure in their vicinity. We derive the effective motional dynamics of…Lorenzo Papa, Onur Hosten, Carlos Gonzalez-Ballestero·Jul 28, 2026SaveLearn
Entanglement-based quantum key distribution with data in hollow-core fiberThe coexistence of quantum information and classical signals in a single fiber is essential for future quantum networks that leverage the well-established optical fiber infrastructure. Although…Yue Luo, Sheng Liu, Yun-Ru Fan et al.·Jul 28, 2026SaveLearn
The Emergence of Time from Quantum Records: Actualization and the Surprisal ClockWe develop a record-based account of internal time in quantum mechanics. Persistent records first define an ordinal chronology through inclusion of their accumulated Boolean algebras. On a specified…Lionel Martellini·Jul 28, 2026SaveLearn
Loss-induced anomalous generalized bunching in multiphoton interferenceWe show that internal loss and survival conditioning can activate anomalous generalized bunching in passive linear optical circuits. We introduce a conditional bunching probability that all photons…Rikizo Ikuta·Jul 28, 2026SaveLearn
Dissipation Enables Strongly Detuning-Dependent Interference in Pulsed Dynamical DecouplingOne of the defining features of pulsed dynamical decoupling is its suppression of a driven qubit's sensitivity to static detuning errors between the drive field and qubit resonance. In this…Kenneth DeRose, Jonah Glick, Kefeng Jiang et al.·Jul 28, 2026SaveLearn