Deviation from linear reduced dynamics always occurs for each non-factorisable system-environment unitary evolutionIn the simplest approximation, the reduced dynamics of a quantum system S interacting with its environment E is considered to be given by a completely positive map. But, in general, this is not…Iman Sargolzahi·Aug 19, 2026SaveLearn
Subsystem Symmetries and Fracton Models in Quantum Error CorrectionConstructing new quantum codes and understanding their error resilience are central challenges in the development of robust quantum memories. Topological codes are particularly promising due to their…Giovanni Canossa·Aug 19, 2026SaveLearn
An ultra-bright, highly-scalable, squeezed light source for hybrid quantum photonicsHybrid quantum photonics seeks to combine the complementary advantages of continuous- and discrete-variable quantum optics. This typically entails photon-counting measurements on entangled states…Kai-Hong Luo, Denis Kopylov, Florian Lütkewitte et al.·Aug 19, 2026SaveLearn
AlphaClifford: Efficient Clifford Synthesis and Transpilation with Model-based RLClifford circuits play a foundational role in quantum computing, particularly due to their importance in quantum error correction and fault-tolerant logical synthesis. While these circuits can be…Daniele Lizzio Bosco, Jacopo Cossio, Carla Piazza et al.·Aug 19, 2026SaveLearn
Quantum-Enhanced Atomic Sensor via Spin Nonequilibrium CriticalityThe sensitivity of quantum sensors is fundamentally constrained by the standard quantum limit (SQL) arising from intrinsic quantum fluctuations. While non-classical resources like squeezing or…Ding Huang, Minwei Shi, Guzhi Bao et al.·Aug 19, 2026SaveLearn
Real Classical Shadows with NoiseThe real classical shadows protocol of West et al. replaces the unitary (Clifford) ensemble of the Huang--Kueng--Preskill scheme by the orthogonal (real Clifford) ensemble, and for symmetric…Atharva Hingane, Dax Enshan Koh·Aug 19, 2026SaveLearn
Quantum Tensor Network Learning with DMRGTensor Networks are a relatively new machine learning approach. The architectures proposed initially are inspired by approaches from quantum many-body physics simulations. One common layout is the…Gustav J L Jäger, Martin B Plenio, Hans-Martin Rieser·Aug 19, 2026SaveLearn
The exact price of local realism in CHSH experiments: a measurement-dependence-detection trade-off surface, a moiré phase-locking mechanism that saturates it, and an unmeasured fringe in the fourfold coincidence sumFor local hidden-variable accounts of the CHSH experiment that are faithful -- reproducing the observed singles and coincidence rates and unbiased marginals of a polarization singlet with symmetric…Aaron Alai·Aug 19, 2026SaveLearn
Secure Medical Data Transmission Using Quantum Key Distribution and Post-Quantum Cryptography in Real-World Fiber NetworksThe threat quantum computers pose to classical public-key cryptography motivates the deployment of quantum-safe communication for critical infrastructure such as healthcare, finance, and energy…Vasile-Laurentiu Dosan, Paul Spooren, Sebastian Moeckel et al.·Aug 19, 2026SaveLearn
Copy-Protection with Correlated Challenges: Point Functions and More via Decisional Coset MonogamyCopy-protection encodes a functionality in a reusable quantum state that cannot be split into two states (freeloader adversaries) which remain simultaneously useful. Prior plain-model results handle…Amit Behera, Alper Çakan, Vipul Goyal·Aug 19, 2026SaveLearn
Near-Optimal Mixedness Testing with Pauli MeasurementsWe consider a fundamental problem of mixedness testing: Given n copies of an N-qubit state ρ, determine whether ρ= Id/d or \|ρ-Id/d\|1 ≥ with high…Jayadev Acharya, Abhilash Dharmavarapu, Yuhan Liu et al.·Aug 19, 2026SaveLearn
Interior skin focusing and directional mirror transfer in a graded non-Hermitian Krawtchouk networkSpatially graded nonreciprocity can move skin weight away from a boundary, but it does not generally preserve a real commensurate spectrum or analytically controlled dynamics. We study a finite open…Y. S. Liu, X. Z. Zhang·Aug 19, 2026SaveLearn
Robustness of spin state superpositions for noisy quantum metrologyQuantum metrology faces major challenges in noisy environments, where decoherence rapidly degrades useful quantum resources. We investigate the dynamics of the precision limits given by the quantum…Trinidad B. Lantaño, Gabriela Wójtowicz, Susana F. Huelga et al.·Aug 19, 2026SaveLearn
An ultracompact dilution refrigerator for fast quantum device characterizationRapid thermal cycling is a central bottleneck in the development of superconducting quantum devices: conventional dilution refrigerators require cooldowns of a day or more and substantial cryogenic…Clment Geffroy, Dorian Nicolas, Eric Eyraud et al.·Aug 19, 2026SaveLearn
Experimental zero-added-loss multiplexing Bell-pair source for long-haul quantum networksBoosting the communication rate of quantum networks is a central challenge in quantum information science. Recently, an efficient entanglement distribution scheme employing quasi-deterministic…Yoshiaki Tsujimoto, Daiki Ichii, Rikizo Ikuta et al.·Aug 19, 2026SaveLearn
Quantum-Logic Tsetlin Machines: Interpretable Quantum Machine Learning with Commuting Projector ClausesTsetlin Machines (TMs) learn interpretable Boolean clauses using finite-state automata. We introduce the Quantum-Logic Tsetlin Machine (QL-TM), which replaces Boolean literals with quantum…Krishna Bhatia·Aug 19, 2026SaveLearn
(Almost) quadruply optimal unitary designs in 1DWe construct n-qubit approximate unitary k-designs in 1D systems, achieving circuit depth O((n/) + k k) with relative error and requiring O(nk k) magic…Guoding Liu, Jonas Helsen·Aug 19, 2026SaveLearn
Branching (Almost) Everywhere And All at OnceIt is sometimes said that a reason to prefer Everettian quantum mechanics is that it allows one to avoid the kind of spooky action at a distance that is a consequence of quantum entanglement…Alyssa Ney·Aug 19, 2026SaveLearn
Exact Matching-Polynomial Solution of the Periodic Baxter-Fendley ZN Clock ChainThe periodic non-Hermitian Baxter-Fendley ZN clock chain has lacked a complete finite-size spectral solution, whereas its open-chain counterpart admits a solution in terms of independent…Yuguan Li, D. C. Liu, Murray T. Batchelor·Aug 19, 2026SaveLearn
Inverse Feshbach's problem: Solvability and solutionsGiven a certain specific, M by M matrix form of the Feshbach's effective (i.e., energy-dependent) Hamiltonian H(M)e\!f\!f(E), the inverse-problem reconstruction of the full-space, N…Miloslav Znojil·Aug 19, 2026SaveLearn
Know Your Qubits, Know Your Users: Personas for Quantum SoftwareThe advancement of quantum hardware and the intricacies of quantum computing make well-designed quantum software increasingly necessary. Due to the interdisciplinarity of the field, it is crucial to…Lukas Schmidbauer, Joshua Ammermann, Laura Schulz et al.·Aug 19, 2026SaveLearn
Direct fidelity estimation through joint fiducial groupingFault-tolerant quantum computation hinges on the requirement for low physical error rates. Reaching below threshold regime requires the accounting of circuit dependent noise, that is inherent to the…Júlia Barberà-Rodríguez, Arthur Strauss·Aug 19, 2026SaveLearn
Good Stabilizer Codes from Shallow Clifford Circuits with Random MatchingsEncoding quantum information with low circuit overhead is a fundamental challenge in fault-tolerant quantum computation. Random circuits provide a natural mechanism for rapidly spreading logical…Emile Anand, Elia Gorokhovsky, Jennifer Hritz et al.·Aug 19, 2026SaveLearn
Integer Linear Programming Decoder for Abelian and Non-Abelian Topological CodesTopological orders (TOs) are widely used as quantum error-correcting codes, with anyon excitations serving as error syndromes. For certain Abelian TOs, decoding can be performed by independently…Dian Jing, Aubrey Zhang, Liang Jiang et al.·Aug 19, 2026SaveLearn
Sampling isometric tensor network states with monitored quantum circuitsProjected entangled pair states (PEPS) provide an efficient variational ansatz for two-dimensional quantum phases, but computing observables remains challenging because PEPS contraction is generally…Yuqing Rong, Huan-Hai Zhou, Guo-Yi Zhu et al.·Aug 19, 2026SaveLearn