Simultaneous calibration of rotation and phase errors in a single experimentIn weakly anharmonic qubits, coherent control errors take two generic forms -- over/under-rotation and phase errors -- whose suppression normally requires iterated experiments. We show that, for any…Tien D. Nguyen, Hung Q. Nguyen·Jul 21, 2026SaveLearn
The Thermodynamic Geometry of Conditional ControlInformation is widely regarded as the resource underlying the thermodynamic advantages enabled by conditional control. We show, however, that informational quantities such as Holevo information and…J. G. G. de Oliveira, M. E. R. Filippetto, T. A. B. Pinto Silva et al.·Jul 21, 2026SaveLearn
Dimension Reduction for Quantum Adaptive AgentsAdaptive agents realise complex reactive behaviours by using a memory of past input stimuli and output actions to guide structured future responses. Quantum adaptive agents can operate while storing…Rishi Sundar, Thomas J. Elliott·Jul 21, 2026SaveLearn
Nonlinear Response via Sublinear OpticsSublinear optical response, in which the emitted field scales as a fractional power of the driving field, lies beyond the conventional perturbative hierarchy of nonlinear optics. Here, we show that…Mykhaylo Khoma, Valeriia Bilokon, Elvira Bilokon et al.·Jul 21, 2026SaveLearn
Quantum Circuits for Quantum Spatial Search on d-Dimensional LatticesWe propose an explicit quantum circuit for quantum spatial search based on discrete-time quantum walks on d-dimensional lattices. In this algorithm, the flip-flop shift operator moves the walker to…Rei Sato·Jul 21, 2026SaveLearn
Quantum limits to chiroptical molecular discriminationDiscriminating enantiomer pairs is of central importance in the molecular sciences. The preferential interaction between chiral light and matter is commonly employed in this discrimination, despite…Mikael P. Backlund·Jul 21, 2026SaveLearn
Single Link Removal Perturbation in Szegedy Quantum Walk: from Graph Completeness Testing to Integrity MonitoringWe present a rigorous perturbative analysis of the Szegedy quantum walk search algorithm on the complete graph with marked nodes, when a specific anomaly is present in the graph. This is motivated by…Sara Giordano, Miguel A. Martin-Delgado·Jul 21, 2026SaveLearn
Quasi-Non-Hermitian Edge Bursts Induced by Nonuniform LossNon-Hermitian quantum walks on lossy lattices with open boundaries can exhibit an anomalous peak of the loss probability at the boundary, known as the non-Hermitian edge burst (NHEB). This phenomenon…Ze Yang, Wei Li, Fuxiang Li·Jul 21, 2026SaveLearn
Lower Bounds on Spectral Gaps of Parent Hamiltonians via Tensor NetworksProving spectral gaps above the ground space is a central problem in quantum many-body physics. Yet, finding lower bounds on the gap is notoriously difficult. We revisit the martingale method,…Milán Ádám Rozmán, András Molnár, Norbert Schuch·Jul 21, 2026SaveLearn
How to improve the discrimination power of classically simulable measurements?Classically simulable measurements (CSMs) constitute an important class of restricted measurements in the odd-prime-dimensional magic resource theory, referring to those measurements with positive…Yiran Wang, Yongming Li·Jul 21, 2026SaveLearn
Bound Entanglement Is Insufficient for an Exponential Quantum Learning AdvantageWhile entanglement is known to enable exponential improvements in the sample complexity of quantum learning, it remains unclear which properties of entangled resources are responsible for such…Hyeongu Kang, Sangwoo Jeon, Changhun Oh·Jul 21, 2026SaveLearn
Coherent-disorder-driven complexity transitions in a quantum-advantage architectureWhile decoherence is known to erode classical hardness in quantum random sampling, the impact of coherent spatial disorder remains an open question. We study a square-lattice instantaneous quantum…Sung-Bin B. Lee, Chae-Yeun Park, Changhun Oh et al.·Jul 21, 2026SaveLearn
Collective Coherent Perfect Absorption in a Synthetic Photon-Phonon LatticeCoherent perfect absorption (CPA) has emerged as a powerful paradigm for controlling classical and quantum light, and has been demonstrated across a broad range of physical platforms. CPA realized in…Sihan Wang, Qichun Liu, Bo Song et al.·Jul 21, 2026SaveLearn
MOSAIQC: Mixed-topology-aware Optimization for Scalable Approximate noise-Informed Quantum circuit CuttingCurrent quantum computers do not yet have the required qubit resources to meet the demands of most practical quantum algorithms. To circumvent this constraint, the practice of dividing these…Koen Mesman, Yinglu Tang, Matthias Moller et al.·Jul 21, 2026SaveLearn
Quantum-Enhanced Multi-Objective OptimizationMulti-objective combinatorial optimization requires identifying Pareto-optimal trade-off solutions among conflicting objectives, often making it more demanding than its single-objective counterpart.…Maolin Luo, Jiapei Zhuang, Zuoheng Zou et al.·Jul 21, 2026SaveLearn
Simulating Majorana fermions in black hole with Ising ModelsQuantum field theory (QFT) in curved spacetime has led to profound predictions, including the Unruh effect and Hawking radiation, yet their direct observation remains extraordinarily challenging…John Vienn A. Estremadura, Kristian Hauser A. Villegas·Jul 21, 2026SaveLearn
Quantum Sensing Beyond Exceptional Points via Hidden symmetry-protected vacuum-noise fixed pointExceptional-point (EP) sensing has attracted considerable interest because of its anomalous response scaling. However, recent studies have shown that the enhanced response near an EP is inevitably…Wencong Wang, Yuyang Liang, Peng Han et al.·Jul 21, 2026SaveLearn
Quantum sensing of low-frequency electric signal enabled by modulated auxiliary field in Rydberg atomsRydberg atoms have emerged as a versatile and efficient platform for high-sensitivity quantum sensing of free-space electric fields, with remarkable progress in detecting low-frequency signals. To…Xiayang Fan, Shenchao Jin, Jiatian Liu et al.·Jul 21, 2026SaveLearn
Trade-off between predictability and quantum coherence for multi-path interferometry and its operational interpretationThe complementarity principle is a cornerstone of quantum mechanics. In this work, we investigate a complementarity relation between the predictability and quantum coherence, respectively,…Ezra Acalapati·Jul 21, 2026SaveLearn
A Reversible Continuous-Variable Photonic Memory Architecture Based on Displacement-Evolved Coherent-State DynamicsModern information systems increasingly require memory architectures capable of storing not only static data but also the evolution of information over time. While continuous-variable photonic…Sanjit Krishna G M·Jul 21, 2026SaveLearn
Monogamy inequalities of entanglement of assistance in 2 2 d systemsThe monogamy relations characterize the distribution of quantum correlations among the multipartite quantum systems. We study the monogamy relations of the entanglement of assistance in $2…Xue-Na Zhu, Gui Bao, Zhi-Xiang Jin et al.·Jul 21, 2026SaveLearn
Spontaneous optical emission of a randomly oriented chiral quantum sourceWe derive the form of the one-photon state of the electromagnetic field resulting from spontaneous optical emission of a randomly oriented chiral quantum source, including electric dipole, magnetic…Mikael P. Backlund·Jul 21, 2026SaveLearn
Dismantling the Stoquastic DichotomyWe challenge the notion that a stoquastic binary governs fundamental computational boundaries in quantum computing and classical simulation of quantum systems. We argue that vanishing geometric phase…Armen Karakashian, Itay Hen·Jul 21, 2026SaveLearn
Mean-State Entropy Hierarchies and Classical Communication through Quantum ConvolutionsQuantum convolution provides a discrete-variable analogue of classical convolution, with the mean state capturing the stabilizer structure preserved under repeated convolution. We establish a…Chunhe Xiong, Sunho Kim, Qing-hua Zhang et al.·Jul 21, 2026SaveLearn
Number Fluctuations and Entanglement-Spectrum Participation in Monitored Free FermionsOn finite system sizes, monitored one-dimensional free-fermion chains display a broad crossover in entanglement scaling as the measurement rate increases, from sub-extensive behavior at weak…Enso O. Torres Alegre·Jul 21, 2026SaveLearn