Focusing Surface-Acoustic-Wave Resonators on Thin-Film Lithium Niobate with Transverse-Mode SuppressionSurface-acoustic-wave (SAW) resonators are a promising platform for constructing hybrid quantum systems, where confined acoustic waves enable strong interaction with various physical systems.…Ryo Sasaki, Ryusuke Hisatomi, Rekishu Yamazaki et al.·Jul 21, 2026SaveLearn
Edge-Local and Qubit-Efficient Quantum Graph Learning for the NISQ EraGraph neural networks (GNNs) are a powerful framework for learning representations from graph-structured data, but their direct implementation on near-term quantum hardware remains challenging due to…Armin Ahmadkhaniha, Jake Doliskani·Jul 21, 2026SaveLearn
Nonlocality without entanglement in exclusion of quantum statesWe study the task of quantum state exclusion, focusing on antidistinguishability and its generalization to x-antidistinguishability, under global measurements and local operations with classical…Satyaki Manna, Anandamay Das Bhowmik·Jul 21, 2026SaveLearn
Payoff-Free Coordination Reveals Hidden Quantum Correlation StructureWe study decentralized multi-agent coordination where agents must correlate actions against an unobserved field and cannot communicate. To isolate correlation geometry from payoff optimization, we…Sinan Bugu·Jul 21, 2026SaveLearn
The rate of purification of quantum trajectoriesWe investigate the behavior of quantum trajectories conditioned on measurement outcomes. Under a condition related to the absence of so-called dark subspaces, Kümmerer and Maassen had shown that such…Maël Bompais, Nina H. Amini, Juan P. Garrahan et al.·Jul 21, 2026SaveLearn
Higher Josephson harmonics in a tunable double-junction transmon qubitTunable Josephson harmonics open new avenues for qubit design. We demonstrate a superconducting circuit element consisting of a tunnel junction in series with a SQUID loop, yielding a Josephson…Ksenia Shagalov, David Feldstein-Bofill, Leo Uhre Jakobsen et al.·Jul 21, 2026SaveLearn
Local Equivalences of Graph StatesGraph states form a large family of quantum states that are in one-to-one correspondence with mathematical graphs. Graph states are used in many applications, such as measurement-based quantum…Nathan Claudet·Jul 21, 2026SaveLearn
First and second quantized digital quantum simulations of bosonic systemsWe compare the basic resource requirements for first and second quantized bosonic mappings in a system consisting of N particles in M modes. In addition to the standard binary first quantized…Mathias Mikkelsen, Hubert Okadome Valencia·Jul 21, 2026SaveLearn
Non-abelian Geometric Quantum Energy PumpWe introduce a non-abelian geometric quantum energy pump realized by a transitionless geometric quantum drive--a time-dependent Hamiltonian supplemented by a counterdiabatic term generated by a…Yang Peng·Jul 21, 2026SaveLearn
Pilot-Wave Simulator: Exact Classical Sampling from Ideal and Noisy Quantum Circuits up to Hundreds of QubitsQuantum circuit simulators running on classical computers offer a vital platform for designing, testing, and optimizing quantum algorithms, driving innovation despite limited access to real quantum…Gleb Kalachev, Pavel Mosharev, Zuoheng Zou et al.·Jul 21, 2026SaveLearn
Matrix product state approach to lossy boson sampling and noisy IQP samplingSampling problems have emerged as a central avenue for demonstrating quantum advantage on noisy intermediate-scale quantum devices. However, physical noise can fundamentally alter their computational…Sojeong Park, Changhun Oh·Jul 21, 2026SaveLearn
Fragmentation of Virtual Orbitals for Quantum Computing: Reducing Qubit Requirements through Many-Body ExpansionWe introduce quantum virtual-orbital fragmentation (Q-FVO), a systematic method for reducing the largest active space in correlated quantum-chemistry calculations. The complete occupied space is…Federico Zahariev, Vassiliki-Alexandra Glezakou, Mark S. Gordon·Jul 21, 2026SaveLearn
A Unified Approach to Quantum Key Leasing with a Classical LessorSecure key leasing allows a cryptographic key to be leased as a quantum state in such a way that the key can later be revoked in a verifiable manner. In this work, we propose a modular framework for…Fuyuki Kitagawa, Jiahui Liu, Shota Yamada et al.·Jul 21, 2026SaveLearn
Robust Belief-State Policy Learning for Quantum Network Routing Under Decoherence and Time-Varying ConditionsQuantum network routing requires online decisions under probabilistic entanglement generation, finite quantum memories, decoherence, imperfect operations, and classical feedback, while the controller…Amirhossein Taherpour, Abbas Taherpour, Tamer Khattab et al.·Jul 21, 2026SaveLearn
atommovr: An open-source simulation framework for rearrangement in atomic arraysThe task of atom rearrangement has emerged in the last decade as a fundamental building block in the development of neutral atom-based quantum processors. As such processors grow to thousands of…Nikhil K Harle, Bo-Yu Chen, Bob Bao et al.·Jul 21, 2026SaveLearn
Ultracoherent superconducting cavity-based multiqudit platform with error-resilient controlRealizing the promise of quantum computing requires simultaneously increasing Hilbert-space size and coherence times. While qubit-based architectures have long been the dominant paradigm, large local…Taeyoon Kim, Tanay Roy, Xinyuan You et al.·Jul 21, 2026SaveLearn
Zassenhaus Expansion in Solving the Schrödinger EquationA fundamental challenge in quantum simulation is approximating the time-evolution operator \(U(t)=e-iHt\) generated by a large sum of typically non-commuting Hamiltonians using…Yali Du, Naihuan Jing, Molena Nguyen et al.·Jul 21, 2026SaveLearn
iSwitch: QEC on Demand via In-Situ Encoding of Bare Qubits for Ion Trap ArchitecturesRecent advances in quantum hardware and error correction have paved the way for early fault-tolerant (EFT) quantum computing. We propose iSwitch, a hybrid system architecture for trapped-ion quantum…Keyi Yin, Xiang Fang, Zhuo Chen et al.·Jul 21, 2026SaveLearn
Quantum mechanics based on real numbers: A consistent descriptionComplex numbers play a crucial role in quantum mechanics. However, their necessity remains debated: whether they are fundamental or merely convenient. Recently, it was shown that any real-number…Pedro Barrios Hita, Anton Trushechkin, Hermann Kampermann et al.·Jul 21, 2026SaveLearn
Gap between quantum theory based on real and complex numbers is arbitrarily largeQuantum Information Theory, the standard formalism used to represent information contained in quantum systems, is based on complex Hilbert spaces (CQT). It was recently shown that it predicts…Shubhayan Sarkar, David Trillo, Marc Olivier Renou et al.·Jul 21, 2026SaveLearn
On the consistency of measurement protocols for quantum processes fluctuationsQuantum fluctuations are fundamental to quantum technologies, affecting quantum computing, sensing, cryptography, and thermodynamics. A paradigmatic example is quantum work, which, for a thermally…Thales Augusto Barbosa Pinto Silva, David Gelbwaser-Klimovsky·Jul 21, 2026SaveLearn
On the issues arising when defining an X gate for qudits: Extending the Bit-Flip channel to d-dimensional systemsGiven the current interest in quantum information tasks involving higher-dimensional systems, we discuss some of the issues that appear when extending the bit-flip channel to qutrit systems. The…Jean F. Gomez, Hermann L. Albrecht·Jul 21, 2026SaveLearn
General Concurrence Percolation on Quantum NetworksA quantum network is a network of entangled states, which can be used to transmit quantum information. Nonmaximally entangled states are not really effective in establishing quantum communication…Deep Nath, Soumen Roy·Jul 21, 2026SaveLearn
Floquetifying stabiliser codes with distance-preserving rewritesStabiliser codes with large weight measurements can be challenging to implement fault-tolerantly. To overcome this, we propose a Floquetification procedure which, given a stabiliser code, synthesises…Benjamin Rodatz, Boldizsár Poór, Aleks Kissinger·Jul 21, 2026SaveLearn
Local equivalence of stabilizer states: a graphical characterisationStabilizer states form a ubiquitous family of quantum states that can be graphically represented through the graph state formalism. A fundamental property of graph states is that applying a local…Nathan Claudet, Simon Perdrix·Jul 21, 2026SaveLearn