Information-Geometric Representation of Upper Bounds on Fluctuation Growth in Open Quantum SystemsBuilding on our earlier results for closed quantum systems, we investigate the dynamical evolution of quantum fluctuations and their connections to Fisher information and the quantum operations…Newshaw Bahreyni, Paul M. Alsing·Nov 3, 2026SaveLearn
Initialization-controlled fault sensitivity and force-balance plateaus in noisy variational quantum optimizationWe study deep variational circuits for a periodic Heisenberg chain under local gate depolarization, at depths where noiseless training is coherently exact. Full-width initializations reach low…Longhui Shen, Fangzhou Jin, Bin Guo·Nov 3, 2026SaveLearn
Quantum identity authentication protocol via perturbed probability amplitudesQuantum identity authentication is an effective solution for establishing mutual trust between communicating parties in the post-quantum era. To address the risk of partial secret information leakage…Xiangqun Fu, Zheng Han, Hongwei Li et al.·Nov 3, 2026SaveLearn
Entanglement Allocation for Quantum Integrated Sensing and CommunicationJointly supporting communication and distributed sensing over a shared, limited pool of entanglement resources is an attractive prospect for future quantum networks. We develop a network-level…Shiva Kazemi Taskooh, Mehdi Monemi, Ekram Hossain et al.·Nov 3, 2026SaveLearn
Anti-distinguishability of quantum channelsWe study single-query perfect anti-distinguishability/exclusion tasks of finite quantum channel ensembles, primarily using associated Choi operators and process POVMs. Weak perfect…Ardra Ajitha Vijayan, Nidhin Sudarsanan Ragini·Nov 3, 2026SaveLearn
Runtime Compilation for Quantum Circuits with PQF-Enabled Rz SynthesisIn Fault-Tolerant Quantum Computing (FTQC) using surface codes, reducing T-count is critical for efficient computation due to the high cost of T-state distillation. Probabilistic Quantum Circuit…Siddharth Dangwal, Christopher Kang, Jad Habhab et al.·Nov 2, 2026SaveLearn
Gaussian Quantum Integrated Sensing and CommunicationWe consider a quantum integrated sensing and communication problem over an optical link in which a low-power transmitter simultaneously communicates with a receiver and identifies the range of a…Tuna Erdoğan, Shi-Yuan Wang, Shang-Jen Su et al.·Nov 2, 2026SaveLearn
Tight Quasiprobabilistic Entropic Uncertainty Relations for Discrete Quantum SystemsIt was conjectured by Wehrl and proven by Lieb that the Shannon differential entropy of the Husimi function of a continuous-variable quantum state is lower bounded by the value it takes on coherent…Jonathan J. Thio, Stephan De Bièvre, Crispin H. W. Barnes et al.·Nov 2, 2026SaveLearn
Adaptive Qubit Encoding for Continuous-Variable Quantum OptimizationOptimizing continuous-variable functions on qubit-based quantum hardware requires a finite representation of the search space and a solver-compatible representation of the objective function.…Samuele Cavinato, Marco Tesoro, Gianluca Morettini et al.·Nov 2, 2026SaveLearn
The Impact of Internal Electric Fields on Accurate Diamond MagnetometryNitrogen-vacancy (NV) center spin ensembles are a promising platform for accurate vector magnetometry, as they offer measurements referenced to a spin Hamiltonian in an anisotropic crystal with…Jack Faller, Daphne Freda Gavras, Andrew Lowther et al.·Nov 2, 2026SaveLearn
Pump quantization changes optimal measurements for quantum sensingStandard analyses of quantum phase sensing often neglect the overhead of generating squeezed-light by treating the pump as an undepleted classical resource. Realistically, the pump is a quantum…S. A. Wadood, L. Bello, T. Ilias et al.·Nov 2, 2026SaveLearn
Non-Hermitian effective dynamics from post-selection protocolsMultiple seemingly distinct frameworks are commonly proposed to explain the emergence of effective non-Hermitian dynamics in quantum systems coupled to an environment. Furthermore, it remains…Apostolos Siskou, Volker Meden·Nov 2, 2026SaveLearn
Analog quantum simulation of paraparticle statisticsBosonic and fermionic quantum statistics describe all known elementary and emergent particles in three dimensions, although many attempts have been made to discover other valid quantum statistical…Gyunghun Kim, Cora N. Barrett, Sarah E. Muschinske et al.·Nov 2, 2026SaveLearn
Unital qubit channels are 3-noisyThe algebraic and environmental characteristics of mixed unitary quantum operations are investigated. It is established that the composition of two uniformly n-mixed unitary channels is itself…Indu Bala, Preeti Parashar, Swapan Rana·Nov 2, 2026SaveLearn
Hardware-Aware Design and Layout Selection in Quantum Reservoir Computing for Insurance Claims ForecastingQuantum reservoir computing (QRC) processes temporal information through quantum dynamics, but it remains unclear whether small QRC models can forecast real data competitively with classical models…Renáta Rusnáková, Eugen Šlapak, Gaurav K. Pandey et al.·Nov 2, 2026SaveLearn
High-fidelity quantum gate learning via physics-informed neural networksWe propose a physics-informed neural network (PINN) approach for high-fidelity quantum gate learning in both one- and two-qubit systems. We train a PINN using the time-dependent Schrödinger equation,…Luis Fabra, Cristian E. Susa, Alcides Montoya et al.·Nov 2, 2026SaveLearn
Entanglement-Aware Quantum Circuit Optimization through Globally Optimal PartitioningWe introduce a scalable framework for globally optimal quantum-circuit partitioning and entanglement-aware block resynthesis. The partitioning problem is formulated as an integer linear program over…Gregory Morse, Muhammad Al Farizi, Jakab Nádori et al.·Nov 2, 2026SaveLearn
Long-range entangled criticality from coherent errorsWe find that coherent error can induce a phase transition from the clean surface code phase into an extended long-range entangled critical regime with diverging Markov length. To demonstrate this, we…Amir-Reza Negari, Subhayan Sahu, Jan Behrends et al.·Nov 2, 2026SaveLearn
Optimised finite key for satellite up-link entangled quantum key distributionEntanglement-based quantum key distribution from ground to satellite has been proposed as a scalable primitive for global quantum networks and will be demonstrated as part of the imminent QEYSSat…Thomas Jaeken, Faris Redza, Stefan Bäuml et al.·Nov 2, 2026SaveLearn
Quantum channel tomography: optimal bounds in the near-boundary regimeQuantum channel tomography (also known as quantum process tomography) is a fundamental task in quantum information and quantum computing, aiming to learn the full description of an unknown quantum…Kean Chen, Aadil Oufkir·Nov 2, 2026SaveLearn
Lee-Yang theorems for q-deformed oscillators and doubly-scaled SYKWe show that the vacuum partition function of the q-deformed oscillator \[ Lq(z):= 0|ezTq|0, Tq := aq + aq* \] satisfies the Lee-Yang property, i.e.,…Arpon Basu, Siddhant Midha·Nov 2, 2026SaveLearn
Spacetime Emergence in the Memory of a Learning AgentWe show that the causal structure of spacetime can emerge within the memory of a learning agent performing a quantum information task. We train a model-based reinforcement-learning agent to maximize…Philip A. LeMaitre, T. Rick Perche·Nov 2, 2026SaveLearn
Unifying entanglement and nonclassicality via the Narcowich-Wigner spectrumEntanglement and nonclassicality are two fundamental features of quantum mechanics which serve as resources in quantum information processing tasks and are tightly connected by two-mode mixing. In…Massimo Frigerio, Zacharie Van Herstraeten, Hania Herbi et al.·Nov 2, 2026SaveLearn
Quantum tomography on Schwartz spaceIn this work we show that standard results in quantum tomography, which are typically proven in the context of Hilbert spaces, can analogously be established in the theory of Schwartz spaces. In…Tobias Thrien, Gabriele Carcassi, David Carfì et al.·Nov 2, 2026SaveLearn
On the Failure Probability of Quantum Leftover Hashing with Bad SeedsWe study hashing against quantum adversaries, as used in cryptographic applications, and provide bounds on the probability of failure in practical settings where seeds might be reused and might be…Asker Friis Bach, Isabel Moreno Babuglia, Jonatan Bohr Brask·Nov 2, 2026SaveLearn