Exceptional Points and Optimized Encoding in Qubit Stabilizer CodesContinuous blind stabilizer measurements turn stabilizer codes into a Liouvillian spectral problem in which Hamiltonian terms compete with dissipative error channels. We show that this competition…Yves Rottstaedt, Andrei I. Pavlov, Alexander Shnirman et al.·Nov 2, 2026SaveLearn
Surface charges and quantum reflection of hydrogen-isotope beams at grazing incidenceExperiments with cryogenic beams of hydrogen isotopes (hydrogen (H), deuterium (D), and tritium (T)) can be used to study quantum reflection from solid dielectric mirrors. Most dielectric surfaces…A. Yu. Voronin, V. V. Nesvizhevsky·Nov 2, 2026SaveLearn
Efficient thermalization of one-dimensional noncommuting Hamiltonians via system-bath interactions with Θ(n) ancilla qubitsWe prove rapid convergence of a system-bath interaction algorithm for preparing Gibbs states of one-dimensional noncommuting Hamiltonians at every fixed positive temperature. For a chain of n…Zhiyan Ding, Bowen Li, Ruizhe Zhang·Nov 2, 2026SaveLearn
Quartet state of the neutral nitrogen-vacancy center in diamond and optimized spin readout under near-infrared two-photon excitationPhotoionization of the excited nitrogen-vacancy center (NV-) in diamond leaves the neutral defect in a metastable quartet state of unknown energy. Using two-photon optically detected magnetic…Nikoletta Jegenyes, Pál Maák, Vladimir Verkhovlyuk et al.·Nov 2, 2026SaveLearn
Agentic Pipelines for Mapping Topological Codes to Quantum HardwareMapping a prescribed many-body Hamiltonian to a particular quantum hardware is generally an approximate process, resulting in both intended and unwanted quantum dynamics. We introduce an…Arpit Arora, Adam Holmes, Krysta M. Svore et al.·Nov 2, 2026SaveLearn
Stabilizer Learning under Global Depolarizing Noise with Polynomial Copies and 2t TimeWe study learning the stabilizer structure of an unknown pure n-qubit state observed through global depolarizing noise of unknown strength, with a fixed promised upper bound below one, using…Aryeh Lev Zabokritskiy·Nov 2, 2026SaveLearn
Qyantram: A Transparent and Verifiable Quantum Computing PlatformMost quantum circuit platforms focus on idealized circuit assembly and simulation, hiding hardware compilation, error identification, and variational model training behind black-box operations.…Sharyu Kekane, Sadique Khatib, Abhushan Bokade et al.·Nov 2, 2026SaveLearn
Dynamics of Fock states in traveling pulsesThe quantum state of a traveling light pulse can qualitatively change the excitation dynamics of a two-level atom. We investigate this dependence for coherent and Fock input states using a…Vasil Z. Vasilev, Benedetto Militello, Anna Napoli et al.·Nov 2, 2026SaveLearn
Spin SYK-dot chains: entanglement bound and resource estimates towards a quantum advantageGround states of Sachdev-Ye-Kitaev (SYK)-type models are volume-law entangled, which makes them costly both for tensor networks and for quantum hardware simulations. Thus, it remains unclear where…Sayantan Dey, Abel Carreras, Siddhartha Patra·Nov 2, 2026SaveLearn
Taming a macroscopic free mass through continuous quantum measurementThe free particle is the most elementary dynamical system in quantum mechanics. Despite remarkable progress in quantum control of increasingly massive solid-state mechanical oscillators, the…Umang Mishra, Teodor Strömberg, Gabriela Valencia-Guzman et al.·Nov 2, 2026SaveLearn
Correlated Catalysis Removes the Strong Converse for Entanglement DistillationEntanglement distillation converts noisy shared quantum states into maximally entangled pairs using local operations and classical communication. The distillable entanglement ED determines the…Piotr Masajada, Aby Philip, Alexander Streltsov·Nov 2, 2026SaveLearn
Belief Propagation-Informed Tesseract Decoding of Quantum LDPC CodesIn quantum error correction, the decoder must estimate the errors from the measurement data accurately and fast enough to avoid a backlog. Search-based decoders such as Tesseract achieve high…Sana Javed, Francisco Garcia-Herrero, Bane Vasić et al.·Nov 2, 2026SaveLearn
On physical origin of Berry connection of free relativistic electronsNo consensus has been reached on the appropriate operators for the spin and orbital angular momentum of free relativistic electrons. But there is a tendency to believe the existence of a spin-orbit…Chun-Fang Li·Nov 2, 2026SaveLearn
Second-order mean force Gibbs state of fermionic open systemsThermodynamics typically assumes that a system in contact with a thermal reservoir relaxes to the Gibbs state, or to the grand canonical Gibbs state when it also exchanges particles. However, this…David J. Strachan·Nov 2, 2026SaveLearn
Nonreciprocal generation of Bell states via cooperative dissipation in a qubit-magnon systemDirectionally generating and controlling quantum states is critical in chiral quantum technologies. Here, we propose a scheme for the nonreciprocal generation of Bell states via cooperative…Fei Gao, Xiang-Jing Geng, Wei Feng et al.·Nov 2, 2026SaveLearn
Needle-beam generation from SPDC photons using inverse-designed flat opticsWe experimentally demonstrate the generation of needle-like beams from spontaneous parametric downconversion (SPDC) light using a compact inverse-designed multilevel diffractive lens (MDL). The…Sunny, Jyotshna Bora, Ayush Tiwari et al.·Nov 2, 2026SaveLearn
eigenkit: A Provider-Neutral Quantum Computing LibraryQuantum software ecosystems provide increasingly capable tools for simulation and hardware execution, but differences in programming models, supported features, and backend capabilities can make it…Laia Domingo, Daniil Tarpanov, Arsenii Senokosov et al.·Nov 2, 2026SaveLearn
Inducing cooperative dynamics in an inhomogeneous many-emitter ensemble with a pulse sequenceDriving a many-particle quantum system with an appropriately tuned external field can give rise to features in its nonequilibrium dynamics that are absent in the equilibrium counterpart. Cooperative…Vincent P. Iglesias-Cardinale, Shreekanth S. Yuvarajan, Herbert F. Fotso·Nov 2, 2026SaveLearn
Towards Optimal Routing Strategies for qLDPC codes on Silicon Spin QubitsOne of the major challenges of implementing high-rate quantum error correction codes, like qLDPC codes, is realizing the required long-range interactions. Spin qubit platforms can provide this…Merlin Incerti-Medici, Minh T. P. Nguyen, Stefano Bosco et al.·Nov 2, 2026SaveLearn
Full-Rank Constructions of Explicit Lossless Expanders and Good Small-Set qLTCsWe construct explicit two-sided lossless expanders whose binary adjacency matrices have full rank, and use them to obtain explicit asymptotically good quantum LDPC codes whose specified X- and…Yali Aharon-Holzman, Michael Ilan, Assaf Reiner et al.·Nov 2, 2026SaveLearn
Quantum-Nondemolition Probing of Multiphoton Transitions between Dressed States in a Strongly Driven Jaynes--Cummings SystemThe response of the Jaynes--Cummings (JC) model to strong driving has been examined previously, but the origin of intriguing features near emitter--cavity resonance remains poorly understood because…Han-Yu Ren, Zi-Yi Liu, Wen-Qi Fu et al.·Nov 2, 2026SaveLearn
Reimagining computational quantum research with AI scientistsAI scientists are expanding automated research across scientific domains, yet their ability to turn the scientific record into a foundation for autonomous discovery remains elusive. Here we uncover a…Yuxuan Du, Hanqing Zhao, Xinbiao Wang et al.·Nov 2, 2026SaveLearn
unitaryQIP = unitaryPSPACEUnitary synthesis complexity studies the computational cost of applying a target unitary to an unknown quantum state, extending complexity theory beyond its traditional focus on problems with…Entong He, Fengning Ou, Mingnan Zhao·Nov 2, 2026SaveLearn
Single-port homodyne detection achieves optimal multiphase sensing in an n-port ring cavityEstimating several phases simultaneously is more than estimating them one at a time: the optimal measurements for different parameters may not commute, and in a multiparameter problem the quantum…Jiayu He, Aviral Kumar Pandey, Krishna Mohan Mishra et al.·Nov 2, 2026SaveLearn
Entanglement inference from quantum erasure and path discriminationFringes recovered by conditioning on quantum-eraser outcomes do not, by themselves, establish entanglement. We determine the minimum entanglement compatible with recorded eraser data when the…Mohd Asad Siddiqui·Nov 2, 2026SaveLearn