Quantum Relaxometry Under Continuous Wave ExcitationQuantum relaxometry is one of the most successful applications of nitrogen-vacancy (NV) centers in diamond and, more broadly, solid-state spin qubits, enabling ultrasensitive detection of magnetic…Vladimir Verkhovlyuk, Chayma Bouchair, Oleg A. Anisimov et al.·Aug 7, 2026SaveLearn
Preparing approximate N-fold cat states with the phase space instruction setThe phase space instruction set is a continuous-variable universal gate set involving single-qubit rotations and qubit-dependent displacements on a single boson. Using these gates, we prove that a…Shuyan Zhou, Andrew Lucas·Aug 7, 2026SaveLearn
State Preparation Protocols for Entangled States via Open Quantum WalksOpen quantum walks couple transitions on a graph to quantum operations on an internal degree of freedom. We use this structure to formulate protocols for quantum state preparation with nonunitary…Pedro Linck, Nadja K. Bernardes·Aug 7, 2026SaveLearn
Emergent Problem-Graph Alignment in RL-Discovered Entanglement Topologies for QAOAIn the Quantum Approximate Optimization Algorithm (QAOA), the entanglement topology, where qubit pairs are connected by two-qubit gates, is conventionally set equal to the edge set of the problem…Tobias Rohe, Federico Harjes Ruiloba, Markus Baumann et al.·Aug 7, 2026SaveLearn
Storage, Scrambling, and Loss of Information in the Quantum Reservoir Computing ParadigmThe suitability of a quantum reservoir computing (QRC) platform for a given time-series processing task is closely tied to the dynamical properties of its computational substrate and design.…Nathan Keenan, Roberta Zambrini·Aug 7, 2026SaveLearn
Readout-Rank Laws for Isotropic Quantum TangentsDeep parameterized quantum circuits may remain sensitive to a parameter change while the observables retained by a learning model barely respond. We study this separation for a fixed…Marwan Ait Haddou·Aug 7, 2026SaveLearn
Beyond the Quantum Promise: A Security Analysis of Classical Control in Quantum Key DistributionQuantum Key Distribution (QKD) protocols provide information-theoretic security by using quantum mechanical principles. Yet QKD is fundamentally a hybrid protocol: its security depends on the correct…Ali Hamza Malik, Raja Hasnain Anwar, Muhammad Taqi Raza·Aug 7, 2026SaveLearn
Designer Codes from GALA: Compact, Self-Dual, and Rate-1/2 QEC on Reconfigurable Atom ArraysHigh rate quantum low-density parity-check codes on reconfigurable neutral-atom arrays can reduce the overhead of quantum error correction, but near-term devices support only hundreds of qubits with…Willers Yang, Casey Duckering, Arpit Dua·Aug 7, 2026SaveLearn
QMIMO: Circuit Based Quantum MIMO Design with Variational ReceiverThis paper investigates a quantum extension of classical Multiple-Input Multiple-Output (MIMO) communication in which the conventional linear channel model is replaced by a parameterized multi-qubit…Sayeda Bipanchi Ahmed, Bikash K. Behera, Mandar Thatte et al.·Aug 7, 2026SaveLearn
Flip-chip integrated superconducting qubits using electroplated bump bondsFlip-chip integration offers a promising route toward scalable superconducting quantum processors and hybrid semiconductor-superconductor quantum devices. We develop a three-dimensional transmon…Yen-An Shih, Rebecca Gharibaan, Barka Khan et al.·Aug 7, 2026SaveLearn
Demonstration of an LLO CV-QKD system over 12 km of optical fiberContinuous-variable quantum key distribution (CV-QKD) promises high rates and seamless integration with classical beams within a single optical fiber. Over the years, implementations have been…Christiano M. S. Nascimento, Artur A. Matoso, Gustavo C. Amaral et al.·Aug 7, 2026SaveLearn
The small effect of graviton-induced decoherenceWe derive and investigate the reduced dynamics of a nonrelativistic quantum matter system interacting with quantized gravitational waves. Because gravitational radiation couples tidally to the mass…Guri K. Buza, Marko Toroš·Aug 7, 2026SaveLearn
Theory of Deterministic Photon-Loss Subspaces for Quantum InterferencesQuantum coherence, quantum decoherence, and photon number reduction are coexistent in linear lossy optical systems. However, how these three elements combine together to determine the evolution of…Yadi Niu, Haoyang Zhang, Zihan Mo et al.·Aug 7, 2026SaveLearn
Consequences of a dynamical no-signaling condition for classical-quantum interactionsHybrid classical-quantum approaches are instrumental in numerous fields, from condensed matter physics to quantum information science. We recently proposed to describe hybrid systems starting from a…S. Camalet·Aug 7, 2026SaveLearn
Origin of Long-Lived Nuclear Spin States and Coherences in Aliphatic Chains Revealed by Relaxation TheoryDelocalized long-lived states (LLSs) and collective zero-quantum long-lived coherences (LLCs) in aliphatic chains provide a promising route for preserving nuclear spin order with lifetimes that…Danil A. Markelov, Kirill F. Sheberstov·Aug 7, 2026SaveLearn
Existence of Kraus decomposition in infinite dimension via strongly-convergent direct process tomographyAn algorithm is presented for Kraus decomposition of a completely positive operator over separable (countably-infinite-dimensional) Hilbert spaces, together with an elementary proof that the…Paul E. Lammert·Aug 7, 2026SaveLearn
Atomic correlation effects in collapse-induced spontaneous radiationCollapse models introduce stochastic and nonlinear modifications in the quantum dynamics, predicting observable effects, such as spontaneous radiation from charged particles, which can be used to…Simone Manti, Nicola Bortolotti, Lajos Diósi et al.·Aug 7, 2026SaveLearn
Ultrafast quantum gate operations in a Kramers-Henneberger atom QubitWe propose and demonstrate the Kramers-Henneberger KH) atom as a novel qubit platform for ultrafast single-qubit gate operations. In the KH frame, the time-averaged strong laser field engineers a…A. Tasnim Aynul, C. Li, L. Cruz Rodriguez et al.·Aug 7, 2026SaveLearn
Exploring the Relaxation Landscape of a 2D Quantum Magnet on a 256-Qubit ProcessorHow quantum matter relaxes far from equilibrium is a central open problem in many-body physics, and one for which analog quantum simulators are well positioned to move from confirming theory to…Tiago Mendes-Santos, Joseph Vovrosh, Sergi Julià-Farré et al.·Aug 7, 2026SaveLearn
Rate-Fidelity Control for Wide-Area Quantum LinksQuantum network links must distribute entanglement at high rates while satisfying application-specified fidelity demands. However, wide-area deployed fiber links suffer from polarization drift which…Connor Clayton, Cory Nunn, Quinn Carmack et al.·Aug 7, 2026SaveLearn
Many-Body Localization Induced by Correlated Disorder in Interacting Superconducting QubitsThe failure of quantum thermalization due to Many-Body Localization (MBL) has evolved from a theoretical concept in spin chains to an experimental reality in synthetic quantum platforms, most notably…Thiago R. Girão Souza, Andreia Saguia, Alan C. Santos et al.·Aug 7, 2026SaveLearn
From triangles to prisms: towards a geometric extension of concurrence fill for three-qubit mixed statesThe quantification of multipartite entanglement remains a long-standing open challenge in quantum information theory with major implications for quantum foundations and quantum technologies. In the…Divyanshu K. Verma, Girish Kulkarni·Aug 7, 2026SaveLearn
A unifying framework for quantum algorithms for time-dependent non-unitary dynamicsWe present an improved autonomization method for quantum simulation of time-dependent homogeneous dissipative linear systems, combining a clock-variable reformulation with Schrödingerization to…Xiaojing Dong, Chuwen Ma, Yizhe Peng et al.·Aug 7, 2026SaveLearn
Niobium Titanium Nitride as a High Tensile Stress Material for NanomechanicsOver the past decades, high-coherence mechanical resonators have been continuously pushed to new limits, using techniques such as dissipation dilution and clamp-tapering to enhance their quality…Korbinian Rubenbauer, Burak E. Bülbüloglu, Thomas Luschmann et al.·Aug 7, 2026SaveLearn
Multimode phonon-mediated enhancement of entanglement and competing synchronization in cavity magnomechanicsThe generation of quantum correlations in hybrid quantum systems remains a central challenge due to the intrinsic limitations of linear interactions. In cavity magnomechanical platforms, the…Z. Imara, Jia-Xin Peng, E. K. Berinyuy et al.·Aug 7, 2026SaveLearn