Papers
Pixel-Translation-Equivariant Quantum Convolutional Neural Networks via Fourier Multiplexers
Dmitry Chirkov, Igor Lobanov·Apr 7, 2026
Convolutional neural networks owe much of their success to hard-coding translation equivariance. Quantum convolutional neural networks (QCNNs) have been proposed as near-term quantum analogues, but the relevant notion of translation depends on the da...
Gauss law codes and vacuum codes from lattice gauge theories
Javier P. Lacambra, Aidan Chatwin-Davies, Masazumi Honda +1 more·Apr 7, 2026
We develop a comprehensive framework for constructing quantum error correcting codes (QECCs) from Abelian lattice gauge theories (LGTs) using quantum reference frames (QRFs) as a unifying formalism. We consider LGTs with arbitrary compact Abelian gau...
Simulating Thermal Properties of Bose-Hubbard Models on a Quantum Computer
Simon Becker, Cambyse Rouzé, Robert Salzmann·Apr 7, 2026
While recent advances have established efficient quantum algorithms for preparing Gibbs states of finite-dimensional systems, comparable complexity results for bosonic and other infinite-dimensional models remain unexplored. We introduce the first ge...
Late Breaking Results: Hardware-Efficient Quantum Reservoir Computing via Quantized Readout
Param Pathak, Mansi Od, Nouhaila Innan +1 more·Apr 7, 2026
Due to rising electricity demand, accurate short-term load forecasting is increasingly important for grid stability and efficient energy management, particularly in resource-constrained edge settings. We present a hardware-efficient Quantum Reservoir...
A multigraph approach to confusability in quantum channels
Sk Asfaq Hossain, Angshuman Bhattacharya·Apr 7, 2026
We introduce a new approach to confusability in a quantum channel, namely quantum confusability multigraph, which incorporates the output information into the graphical structure. By``counting" the edges between two vertices of this confusability mul...
Exploring bosonic bound states with parallel reaction coordinates
Guan-Yu Lai, Friedemann Queißer, Gernot Schaller·Apr 7, 2026
Bound states are dissipation-resilient states that may emerge when quantum systems are strongly coupled to reservoirs with band gaps. We analyze an exactly solvable bosonic model for bound state existence and reproduce these results by a weak-couplin...
The Quantum Education Ecosystem: A Review of Global Initiatives, Methods, and Challenges
Sara Ayman Metwalli, Aryan Iliat, Steven Thomas +3 more·Apr 7, 2026
Quantum information science and engineering (QISE) is advancing rapidly, creating an urgent demand for a quantum-literate, technically proficient workforce. Despite this need, quantum education initiatives remain fragmented across regions, educationa...
Scaling Laws for Hybrid Quantum Neural Networks: Depth, Width, and Quantum-Centric Diagnostics
Danil Vyskubov, Kirill Vyskubov, Nouhaila Innan +1 more·Apr 7, 2026
Hybrid quantum neural networks are increasingly explored for classification, yet it remains unclear how their performance and quantum behavior scale with circuit depth and qubit count. We present a controlled scaling study of hybrid quantum-classical...
Quantum Machine Learning for particle scattering entanglement classification
Hala Elhag, Yahui Chai·Apr 7, 2026
Entanglement is a key quantity for characterizing quantum correlations in particle scattering processes, but its direct evaluation is computationally demanding on quantum hardware. In this work, we investigate whether fermion density profiles, which ...
Distributions of Noisy Expectation Values over Sets of Measurement Operators
Matthew Duschenes, Roger G. Melko, Juan Carrasquilla +1 more·Apr 7, 2026
Expectation values of measurement operators, interpreted as measurement probabilities, arise frequently throughout quantum algorithms. When quantum states are randomly distributed, their expectation values are also randomly distributed. In this work,...
Distributed Quantum Property Testing with Communication Constraints
Mina Doosti, Ryan Sweke, Chirag Wadhwa·Apr 7, 2026
We introduce a framework for distributed quantum inference under communication constraints. In our model, $m$ distributed nodes each receive one copy of an unknown $d$-dimensional quantum state $ρ$, before communicating via a constrained one-way comm...
Quantum phases in the interacting generalized Su-Schrieffer-Heeger model
Jing-Hua Niu, Jia-Lin Liu, Ke Wang +2 more·Apr 7, 2026
We investigate the quantum phases of a half-filled generalized interacting Su-Schrieffer-Heeger model with intracell, nearest-neighbor, and next-nearest-neighbor intercell hoppings, together with an on-site inter-sublattice interaction. In the nonint...
Quantum advantage in transfer of quantum states
Andrei Stepanenko, Kseniia Chernova, Maxim Gorlach·Apr 7, 2026
Quantum advantage, broadly understood as the ability of quantum systems to significantly outperform their classical counterparts, underpins current interest to quantum technologies and is a topic of active investigation. In many situations, its exist...
Hybrid Quantum-Classical Algorithm for Hamiltonian Simulation
Nhat A. Nghiem, Tzu-Chieh Wei·Apr 7, 2026
We introduce a hybrid classical-quantum algorithm for simulating a Hamiltonian of the form $H= \sum_{i=1}^K H_i = \sum_{i=1}^K H_{i_1} \otimes H_{i_2} \otimes \cdots \otimes H_{i_M}$. Given that the entries of all $\{ H_{i_1}, H_{i_2} , \cdots , H_{i...
Exact WKB analysis of inverted triple-well: resonance, PT-symmetry breaking, and resurgence
Syo Kamata, Tatsuhiro Misumi, Cihan Pazarbaşı +1 more·Apr 7, 2026
We study non-Hermitian quantum mechanics of an inverted triple-well potential within the exact WKB framework. For a single classical potential, different Siegert boundary conditions define three distinct quantum problems: the PT-symmetric, resonance,...
Adaptive Deformation of Color Code in Square Lattices with Defects
Tian-Hao Wei, Jia-Xuan Zhang, Jia-Ning Li +3 more·Apr 7, 2026
Quantum error correction is a crucial technology for fault tolerant quantum computing. On superconducting platforms, hardware defects in large scale quantum processors can disrupt the regular lattice structure of topological codes and impair their er...
Dynamical decoupling and quantum error correction with SU(d) symmetries
Colin Read, Eduardo Serrano-Ensástiga, John Martin·Apr 7, 2026
Dynamical decoupling is a long-established and effective way to suppress unwanted interactions in qubit systems, enabling advances in fields ranging from quantum metrology to quantum computing. For general qudit systems, however, comparable protocols...
Fault-Tolerant One-Shot Entanglement Generation with Constant-Sized Quantum Devices in the Plane
Dylan Harley, Robert Koenig·Apr 7, 2026
Consider a rectangular grid of qubits in 2D with single-qubit and nearest-neighbor two-qubit operations subject to local stochastic Pauli noise. At different length scales, this setup describes both a single quantum computing device with geometricall...
Quantum optomechanics of lossy bodies: general approach and structured squeezed vacuum effects
Alessandro Ciattoni·Apr 7, 2026
We investigate the overall optomechanical force experienced by a macroscopic lossy object in free space under external quantum illumination. To this end, utilizing the Modified Langevin Noise Formalism (MLNF), we derive the time-averaged expectation ...
Generalized hydrodynamics of free fermions under extensive-charge monitoring
Pablo Bayona-Pena, Michele Mazzoni, Lorenzo Piroli·Apr 7, 2026
We study transport dynamics of free fermions subject to the external monitoring of a conserved charge over an extensive region. Focusing on bipartition protocols, we consider monitoring the total particle number over half of the system, and study the...