Real-Space Analysis of Two-Photon Polarization States in Type-II SPDC for High-Purity Polarization EntanglementSpontaneous parametric down-conversion (SPDC) is one of the most widely used sources of polarization-entangled photon pairs, and understanding the generated biphoton state is essential for realizing…Koji Taninaka, Takashi Kakue, Ken Morita·Aug 27, 2026SaveLearn
Strong Coupling of the Mo Mo Stretching Mode to a Locally Confined Stokes Raman Field in Mo2 Molecular ResonatorsConfining optical fields to molecular dimensions is a central objective in nanophotonics and molecular quantum optics. Here, we report strong coupling of the Mo Mo stretching vibration to a locally…Miao Meng, Ying Ning Tan, Guang Yuan Zhu et al.·Aug 27, 2026SaveLearn
Demystifying Relativistic Quantum CollapseNon-relativistic objective collapse theories have been remarkably successful in addressing the conceptual problems of standard quantum mechanics. Despite substantial efforts, the project of extending…R. Muciño, E. Okon, D. Sudarsky et al.·Aug 27, 2026SaveLearn
The Limit and Its Ground. QBism, Scientific Realism, and the Born RuleQBists insist that theirs is a realist position while denying that the quantum formalism represents a mind-independent world. The insistence is hard to place. The realism debate is throughout a…Harald A Wiltsche·Aug 26, 2026SaveLearn
Oracle Synthesis Based on X-Map Decision DiagramsQuantum oracles act as reversible black-box operators that encode classical Boolean functions into quantum states, enabling efficient function evaluation in quantum superposition. The resource…Xin Hong, Kezhen Zhang, Aochu Dai et al.·Aug 26, 2026SaveLearn
Set-Packing and Sequence-Pair QUBOs for the 2D Cutting Stock Problem on Quantum Annealing HardwareThe two-dimensional Cutting Stock Problem (2D-CSP) is an NP-hard problem with direct economic and environmental impacts on manufacturing and logistics. We encode its fixed-plate variant, with free…Miguel Sánchez-Beato, Raul Martinez, Matilde Osa et al.·Aug 26, 2026SaveLearn
UCQM: A Six-Metric Quality Framework for Continuous-Variable Cluster StatesContinuous-variable (CV) cluster states constitute one of the central resources for measurement-based quantum computation (MBQC). Despite substantial progress in their theoretical development and…Saman Sarshar·Aug 26, 2026SaveLearn
Detuning-robust Rydberg entangling gates from echoed pulsesRydberg-based two-qubit gate fidelities in neutral atom arrays are limited chiefly by laser intensity inhomogeneity and by detuning errors from frequency miscalibration, background-field drift,…Zhubing Jia, Yichao Yu, Xiye Hu et al.·Aug 26, 2026SaveLearn
Emergent non-Markovianity in time-delayed waveguide QEDQuantum systems are invariably coupled to a surrounding environment. A common theoretical method to simplify the problem is to trace over the environment under a Markov approximation, which assumes…Debsuvra Mukhopadhyay, Stuart J. Masson·Aug 26, 2026SaveLearn
The Role of Geometric Analysis in Interferometer Design and Optimization for Gravitational Quantum EntanglementThe pursuit of a quantum theory of gravity, aiming to unify general relativity and quantum mechanics, remains one of the most enduring challenges in physics. Because of the extreme energy scales…Alireza Maleki·Aug 26, 2026SaveLearn
Recovery-Free CHSH Nonlocality with Particle LossCan CHSH nonlocality survive particle loss without applying an explicit recovery operation? In principle, any deterministic recovery can be absorbed into the measurement. Operationally, we show that…Giovanni Scala, Cosmo Lupo·Aug 26, 2026SaveLearn
Misunderstanding Convivial Solipsism: the Necessity of a Perspectival LogicConvivial Solipsism is easily misunderstood. Because it denies the absoluteness of observed events while preserving the universality of quantum mechanics, it invites objections that are often…Herve Zwirn·Aug 26, 2026SaveLearn
Enhancing the phase sensitivity of a Mach-Zehnder interferometer beyond the Heisenberg limit through dynamic squeezingWe propose a method to enhance the phase sensitivity of a Mach-Zehnder interferometer, independent of its input states. This is achieved by applying squeezing sequences to one arm of the…Lakshya Bhardwaj, Ankit Tiwari, Mohan Sarovar et al.·Aug 26, 2026SaveLearn
Exploiting overcompleteness of Platonic-solid POVMs for shadow estimationAccurately estimating expectation values of observables from a finite number of measurement shots is a central challenge in quantum information science. Informationally overcomplete measurements…Dario Melegari, Stefano Mangini, Keijo Korhonen et al.·Aug 26, 2026SaveLearn
Quantizing the guiding center: do quantization and coarse graining commute?We develop a nonperturbative, group-theoretic quantization of the effective guiding center theory of a charged particle drifting in a magnetic field in two spatial dimensions, and compare the…Rodrigo Andrade e Silva, Ted Jacobson·Aug 26, 2026SaveLearn
Fault-tolerant quantum computation cannot be achieved with constant spacetime overheadThe threshold theorem states that quantum computations can be made reliable below a physical error threshold, at the cost of additional physical qubits and circuit depth. Recent work has reduced…Kishor Bharti, Tobias Haug, Andrew Tanggara·Aug 26, 2026SaveLearn
Bosonic Encodings for Hermite-Galerkin Discretizations of High-Dimensional PDEs and Bayesian Inverse ProblemsThe Koopman-von Neumann framework has been proposed to design quantum algorithms for non-linear dynamics. It maps a non-linear ordinary differential equation to a linear partial differential equation…Alice Barthe·Aug 26, 2026SaveLearn
Lieb-Schultz-Mattis Constraints for Quantum Channels: A Spacetime-Duality ViewQuantum anomalies strongly constrain the possible behavior of many-body systems. A prime example is the Lieb-Schultz-Mattis (LSM) theorem, which relates UV symmetry and filling constraints to IR…Sarang Gopalakrishnan, Yu-Jie Liu, Tsung-Cheng Lu et al.·Aug 26, 2026SaveLearn
Fast GHZ encoding with 1-o(1) fidelityWe prove that (1-o(1))-fidelity N-qubit Greenberger--Horne--Zeilinger (GHZ) encoding can be performed in time O( N/N) using all-to-all 2-local Hamiltonians with bounded 2-qubit interaction…Laura Shou, T. C. Mooney, Twesh Upadhyaya et al.·Aug 26, 2026SaveLearn
Least Variable Quantum Counting ProcessesCounting processes provide a fundamental description of stochastic events ranging from photon detection to clock ticks. A central question is how accurately such events can be timed when only finite…Bita Olamaei, Florian Meier, Costantino Budroni et al.·Aug 26, 2026SaveLearn
Yang-Lee Criticality as a Dissipative Dynamical Phase Transition: Quantum Simulation of non-Hermitian Physics without Post-selectionWe show that the d+0-dimensional Yang-Lee theory describing classical Ising spins in an imaginary magnetic field can be realized, without post-selection, within a (d-1)+1 open quantum system…Stephen W. Yan·Aug 26, 2026SaveLearn
Asymptotically optimal purification of noisy unitary channels in any dimensionWe consider the problem of noisy unitary purification. Given access to an unknown d-dimensional unitary channel followed by depolarizing noise of strength p, we aim to construct a superchannel…Ryotaro Niwa, Satoshi Yoshida, Mio Murao·Aug 26, 2026SaveLearn
A heterogeneously integrated coupled-cavity frequency beam splitterFrequency encoded photonic qubits promise a scalable path towards high-dimensional quantum information processing, but require efficient components for coherently mixing frequency modes. Coupled…Lucas M. Cohen, Manuel H. Muñoz-Arias, Mohan Sarovar et al.·Aug 26, 2026SaveLearn
Immittance formulas for exact blackbox quantization and divergence-free effective models in circuit QEDBuilding on the first-order circuit quantization method [arXiv:2304.12252, arXiv:2401.09120], we provide simple formulas to construct exact Hamiltonians for Josephson-junction-based superconducting…Philippe Gigon, Peter Rabl, Adrian Parra-Rodriguez·Aug 26, 2026SaveLearn
The Gain-Engineered TransmonThe interaction between a qubit and its environment can be engineered such that one error channel dominates over all others, resulting in noise bias. This property enables error correction codes to…Ian Yang, Francesco Adinolfi, Alessandro Bruno et al.·Aug 26, 2026SaveLearn