Optimal Quantum de Finetti Theorems via Argmax RoundingWe prove optimal finite quantum de Finetti upper bounds. Given a bosonic state ρN∈ D(SymN( Cd)), there is a probability measure ν on the unit sphere such that \[ \|…Fernando Granha Jeronimo, Pei Wu, Haochen Xu·Aug 3, 2026SaveLearn
Entanglement of flower statesThe mysterious nature of entanglement, one of the most prominent exquisitely quantum phenomena, is reflected in its intricate operational structure, with a hierarchy of classes of free operations…Samrat Sen, Ludovico Lami·Aug 3, 2026SaveLearn
Squeezing-Fueled Quantum Otto Engine via Measurement-Induced Cooling: The Two-Qubit Quantum Rabi ModelWe investigate a quantum Otto engine (QOE) constructed from the two-qubit quantum Rabi model, operating within a cavity quantum electrodynamics (QED) architecture. The engine operates with two qubits…S R Rathnakaran, Asoka Biswas·Aug 3, 2026SaveLearn
Thermalization of open quantum systems with pseudomodesPseudomode approaches allow for an exact and unapproximated description of a quantum system interacting arbitrarily strongly with a bath. In general, a system coupled to pseudomodes will not…R. Kevin Kessing, Thibaut Lacroix, Susana F. Huelga et al.·Aug 3, 2026SaveLearn
High-dimensional quantum process tomography with undetected photonsThe goal of quantum process tomography is to fully characterize an operation performed on a quantum state. By considering high-dimensional quantum states (qudit), we show that it is possible to fully…Salini Rajeev, Mayukh Lahiri·Aug 3, 2026SaveLearn
Nanohertz Pendulum toward Macroscopic Entanglement under Structural DampingPendulums are attractive for macroscopic quantum control because gravity dilution reduces mechanical loss, while the 1/f force-noise spectrum associated with structural damping allows nearly…Azusa Sawada, Hina Nakano, Kanta Watanabe et al.·Aug 3, 2026SaveLearn
Spread complexity as a probe in generalized and long-range Aubry-Andre-Harper modelsWe investigate the spread complexity of quantum quenches in generalized and long-range Aubry-Andre-Harper (AAH) models, encompassing regimes with and without mobility edges. In particular, in the…Triyas Sapui, Tanoy Kanti Konar, Subinay Dasgupta et al.·Aug 3, 2026SaveLearn
Detecting high-dimensional entanglement with simple measurementsThe standard benchmark for high-dimensional entanglement is the number of dimensions in which entanglement must be present in order to generate the state. This is called the Schmidt number and its…Suraj Goel, Alexander Bernal, Gabriele Cobucci et al.·Aug 3, 2026SaveLearn
Caustics and Superenergy in the Quantum BouncerWe investigate the quantum interference and energetic phenomena associated with classical caustics in the quantum bouncing ball problem, we refer to as quantum caustics. By considering an initial…Marko. M. Ćosić, Andrew N. Jordan·Aug 3, 2026SaveLearn
Entanglement Generation Beyond Quantum Theory: From Product States to Popescu-Rohrlich BoxesEntanglement generation is a fundamental dynamical capability in quantum information science and underpins many quantum advantages. While quantum theory enables it through unitary dynamics, boxworld,…Shun Umekawa, Akihiro Hokkyo, Hayato Arai et al.·Aug 3, 2026SaveLearn
Learnable yet not simulable: a quantum resource theory of learning modelsQuantum resource theory has sharpened our understanding of the intrinsic complexity of quantum systems, particularly their classical simulability. However, it remains unclear which quantum resource…Xinbiao Wang, Yuxuan Du, Dacheng Tao·Aug 3, 2026SaveLearn
Effects of realistic pulse shapes in two-dimensional spectroscopyTwo-dimensional (2D) spectroscopy is a powerful pump-pump-probe technique for revealing couplings between quantum states and disentangling the different contributions to the optical response of a…M. Russo, R. Gilliot, A. Blech et al.·Aug 3, 2026SaveLearn
Quantum computer-based simulation of Stark many-body localization in a 1D Fermi-Hubbard modelMany-body localization (MBL) is a dynamical phenomenon that describes the non-ergodicity of isolated quantum many-body systems. In contrast to thermalization, this phenomenon leads to a long-lived…Abdul Kalam, Prasenjit Deb, Akitada Sakurai et al.·Aug 3, 2026SaveLearn
Unconditionally successful quantum Time-Marching algorithm via LCU for nonlinear Burgers equationMost recently proposed quantum algorithms for solving linear and nonlinear partial differential equations rely on non-unitary operations. These operations are typically implemented probabilistically,…Niccolo Fonio, Giuseppe Di Molfetta, Pierre Sagaut·Aug 3, 2026SaveLearn
Better accuracy with fewer qubits: Single-particle basis set optimization for quantum chemistry on quantum computersIn spite of recent advances, quantum computers are expected to be sufficiently noisy in the coming few years to the extent of limiting quantum chemical calculations to relatively small number of…Subimal Deb, V. S. Prasannaa·Aug 3, 2026SaveLearn
Field-Free Transverse Aharonov--Bohm Phase Gate for an Orbital l-QubitThe Aharonov--Bohm (AB) effect is usually read out through phase differences associated with spatially distinct electron paths. We show that confined orbital modes provide a same-path alternative: a…Ju Gao, Fang Shen·Aug 3, 2026SaveLearn
Adaptive Spectroscopy of Fast Two-Level-System Dynamics in Superconducting QubitsParasitic two-level-system (TLS) defects are a major source of energy relaxation and temporal instability in superconducting quantum processors. Our sub-second adaptive spectroscopy reveals…Fabrizio Berritta, David Pahl, Lukas Pahl et al.·Aug 3, 2026SaveLearn
Efficient re-sampling in quasi-probability decompositionsNear-term quantum devices are limited by noise and hardware constraints, motivating algorithmic approaches that trade circuit complexity for increased sampling overhead. Quasi-probability…Sara Santos, Stefan Woerner, Vincenzo Savona et al.·Aug 3, 2026SaveLearn
Characterizing the nitrogen-vacancy center singlet transition and its phonon sideband for absorption-based room-temperature magnetometryMagnetometry with nitrogen-vacancy (NV) centers in diamond has shown great promise in recent years. In particular, absorption-based magnetometry techniques, employing a cavity to enhance the…Tobias Probst, Florian Schall, Sebastian Heuft et al.·Aug 3, 2026SaveLearn
Scaled Caldeira-Leggett Dynamics: Deterministic Trajectories and the Classical LimitThe dynamics of an open quantum system in the high-temperature regime of the Caldeira-Leggett model using a Bohmian language is investigated. By expressing the density matrix in polar form,…S. V. Mousavi, S. Miret-Artés·Aug 3, 2026SaveLearn
Adaptive Reconstruction of Bosonic Quantum StatesBosonic quantum systems provide a hardware-efficient platform for quantum information processing but remain challenging to characterise due to their large Hilbert space and the high measurement cost…Vasilisa Usova, Phila Rembold, Ian Yang et al.·Aug 3, 2026SaveLearn
Towards Tensor-Network SAT-Solvers for Quantum-Classical WorkflowsIntegrated HPC/QC systems aim to combine classical high-performance computing with quantum processors, but cannot be reduced to mechanisms for dispatching quantum kernels. An integrated architecture…Benjamin Zec, Lukas Schmidbauer, Maja Franz et al.·Aug 3, 2026SaveLearn
Convergence monitoring of quantum Gibbs samplersRecent progress in fully quantum Markov chain Monte Carlo methods enables efficient Gibbs-state sampling on quantum computers [Chen et al., Nature 646, 561 (2025)]. Although rigorous worst-case…Nikolaos Louloudis, Ruben Ibarrondo, Mikel Sanz et al.·Aug 3, 2026SaveLearn
Zero-G: A Pre-Decoder-Aware Decoder for Quantum Error CorrectionFault-tolerant quantum computing requires classical decoders that keep pace with the underlying hardware, translating syndrome measurements into corrections fast enough to avoid an exponential…Peter Wegmann, Theofilos Augoustis, Aleksandra Świerkowska et al.·Aug 3, 2026SaveLearn
Oraqle: An Empirical Analysis of Qubit Readout and Discriminators in Quantum Error CorrectionQuantum error correction (QEC) is the most promising route toward fault-tolerant quantum computing and, thus, useful quantum computers. QEC operates as a continuous measure-decode-correct cycle:…Emmanouil Giortamis, Aleksandra Świerkowska, Sandra Stankovic et al.·Aug 3, 2026SaveLearn