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
Quantum randomness certification with untrusted measurements and few probe statesWe present a scheme for semi-device-independent quantum randomness certification from an untrusted measurement device and a trusted source and demonstrate it experimentally. No assumptions about…Makoto Ishihara, Carles Roch i Carceller, Kieran Neil Wilkinson et al.·Jul 21, 2026SaveLearn
Limit of spin squeezing in trapped Bose-Einstein condensatesThe evolution of an interacting two-component Bose-Einstein condensate from an initial phase state leads to a spin squeezed state that may be used in atomic clocks to increase the signal-to-noise…Alice Sinatra, Yvan Castin, Emilia Witkowska·Jul 21, 2026SaveLearn
Optimum spin-squeezing in Bose-Einstein condensates with particle lossesThe problem of spin squeezing with a bimodal condensate in presence of particle losses is solved analytically by the Monte Carlo wavefunction method. We find the largest obtainable spin squeezing as…Yun Li, Yvan Castin, Alice Sinatra·Jul 21, 2026SaveLearn
Motional Kerr-Cat States of an Atom in an Optical TweezerSchrödinger cat states - quantum superpositions of classically or macroscopically distinct states - constitute a powerful resource for quantum computing, enhanced metrology, and probing coherence on…Steven K. Pampel, Gur Lubin, Dawson P. Hewatt et al.·Jul 20, 2026SaveLearn
Nonlinear Optics Mediated by Chiral Waveguide QED: Generation of Momentum-anticorrelated Photon PairsIn recent years, chiral quantum optics has emerged as an active research area due to the promising applications in quantum information processing as well as nonlinear optics. We present results on…Wenqi Tong, Spencer J Walsh, H. Alaeian et al.·Jul 20, 2026SaveLearn
Quantum Reservoir Computing: Recent Advances and Future DirectionsQuantum reservoir computing (QRC) uses the dynamics of a fixed or weakly tuned quantum system to transform temporal and sequential inputs into measured features, while training is typically confined…Shehbaz Tariq, Muhammad Talha, Arshid Ali et al.·Jul 20, 2026SaveLearn
Simulating the Dicke Model on Qubit-Based and hybrid Qubit-Boson-Based Quantum ComputersThe Dicke model provides a fundamental description of collective light-matter interactions and has long served as a testbed for exploring a wide range of physical phenomena in quantum optics and…Aravind P. Babu, Seongjin Ahn, Jing Sun et al.·Jul 20, 2026SaveLearn