A Variational Quantum Algorithm for Multi-Skill Project SchedulingJob scheduling is an NP-hard optimization problem with clear industrial relevance. In practice, distributing work across a team is not only about meeting deadlines or improving productivity; it also…Raul Martinez, Miguel Sánchez-Beato, Matilde Osa et al.·Nov 4, 2026SaveLearn
Quantum Advantage needs Multiple PerspectivesThe origin of the quantum speedup is a topic of ongoing research. We propose a logical criterion for the possibility of a speedup within the continuous-variable and odd-prime qudit settings. There,…Jochen Szangolies·Nov 4, 2026SaveLearn
Universally Certifying Partially Self-Correcting Quantum Memories in 3D Translation-Invariant Stabilizer CodesAchieving passive protection of quantum information at finite temperature is a central problem at the intersection of quantum information and quantum many-body physics. Yet a general, computable…Chong-Yuan Xu, Yong Xu·Nov 4, 2026SaveLearn
Beyond the Gap: What Imaginary-Time Evolution Reveals About the Edge of the ContinuumThe spectral gap, the energy separating the ground state from the first excitation, governs many quantum phenomena, yet it is far harder to compute than the ground state. We propose a mathematically…Ruben Karapetyan, Denys Bondar, Jakub Mareček et al.·Nov 4, 2026SaveLearn
Helium States in a CAS(2,2) Subspace Inspired by Quantum PhotonicsWe present a four-mode Fock-state photonics implementation of the variational quantum deflation (VQD) algorithm to calculate the ground-state and excited-state energies for the neutral helium atom in…Forouzan Mirmasoudi, Badie Ghavami·Nov 4, 2026SaveLearn
Improved Exact and Approximate Quantum Fourier Transforms from MultiplicationIn the world of quantum computing, quantum Fourier transform (QFT) has been one of the most important subroutines for quantum algorithms, as exemplified by Shor's factoring algorithms and phase…Chandrima Kayal, Rajat Mittal, Manaswi Paraashar et al.·Nov 4, 2026SaveLearn
Semi-Device-Independent Certification of multi-qubit Entangled Basis MeasurementThe entangled basis measurement plays a pivotal role in fundamental information-processing tasks, such as dense coding, quantum teleportation, and entanglement swapping. Consequently, certifying such…Rajat Pandey, Alok Kumar Pan·Nov 4, 2026SaveLearn
Spatial Path Superposition: A No-Cloning Perspective on MIMO-Inspired Spatial DiversitySpatial diversity is a key mechanism in classical Multi-Input Multi-Output (MIMO) communications, where multiple propagation alternatives provide redundant observations that improve reliability in…Angela Sara Cacciapuoti, Claudio Pellitteri, Marcello Caleffi·Nov 4, 2026SaveLearn
Bridging Pulse and Circuit Levels: A Geometric Framework for Deterministic Error SuppressionQuantum errors in noisy environments remain a major obstacle to advancing quantum information technology. Standard quantum error correction requires massive ancillary qubit overhead, motivating the…Junkai Zeng, Hao Liang, Yong-Ju Hai et al.·Nov 4, 2026SaveLearn
Connection of surface code patches based on entanglement distillation without postselectionDistributed quantum computing is a promising approach for overcoming the scalability limitations of fault-tolerant quantum computing. Entanglement distillation, a process that extracts…Moeto Mishima, Toshihiko Sasaki, Yasunari Suzuki et al.·Nov 4, 2026SaveLearn
Resetting a Superconducting Qubit with a Compact Colder Resistive Dissipator below the Qubit FrequencyEfficient qubit reset has become a key requirement for large-scale superconducting quantum processors, as initialization fidelity increasingly lags behind gate performance and quantum error…Jiajia Tian, Meiling Li, Weijie Sun et al.·Nov 4, 2026SaveLearn
Spatial Cost of Recovering a Fusion Qubit in a Critical Spin ChainVanishing-error recovery of a fusion qubit from a fixed-sector ground doublet of four Kramers--Wannier defects in a critical Ising chain requires at least the shorter three-defect span of physical…Yi Liang·Nov 4, 2026SaveLearn
Robust Geometric Gates for QCCD ArchitectureThe trapped-ion quantum charge-coupled device (QCCD) is a promising route toward scalable quantum computing. However, the frequency offset during shuttling operations introduce significant…Xin Zhang, Yi Tao, Hong Yang Wang et al.·Nov 4, 2026SaveLearn
A Post-Quantum Interactive Hashing TheoremInteractive hashing, introduced by Ostrovsky, Venkatesan, and Yung [OVY93], is a building block in many cryptographic protocols, including perfectly hiding commitments from one-way permutations…Céline Chevalier, Laurent Holin, Quoc-Huy Vu·Nov 4, 2026SaveLearn
Classical Clifford+T Sampling without Computing MarginalsWe introduce a new exact classical sampling algorithm for Clifford+T circuits, called T-by-T sampling. For a circuit with T-count t, it reduces sampling to evaluating 2t amplitudes of circuits with…Mark Koch·Nov 4, 2026SaveLearn
Shadow bootstrapping: Nearly minimal-setting pure-state tomography with shallow Clifford measurementsWe present a pure-state tomography algorithm that uses a nearly minimal number of measurement settings while achieving optimal sample complexity with nonadaptive single-copy shallow Clifford…Gyungmin Cho, Dohun Kim·Nov 4, 2026SaveLearn
Quantum Key Exchange from Public Quantum MoneyTwo-message quantum key exchange (2QKE) cannot be realized in a statistically secure way, and therefore some computational assumptions are required. So far, the known weakest assumption for 2QKE is…Eli Goldin, Tomoyuki Morimae·Nov 4, 2026SaveLearn
Collectively pumped superradiant laser with coherence scaling beyond the standard quantum limitFor more than half a century, the standard quantum limit (SQL) was thought to limit the laser coherence C -- the number of photons emitted from the laser into the beam in one coherence…Ori Somech, Howard M. Wiseman·Nov 4, 2026SaveLearn
Sample-based Quantum Diagonalization via Density Matrix Renormalization GroupWe introduce SqDMRG, which combines sample-based quantum diagonalization (SQD) with the density matrix renormalization group (DMRG). SqDMRG expands the sampled determinant space into a product of…Yuto Sugimoto, Tomonori Shirakawa, Yukio Kawashima et al.·Nov 4, 2026SaveLearn
The Structure of Shared Classical Facts in Quantum SystemsPerfectly matching local outcomes need not constitute a nondisturbing shared classical record. For finite-dimensional multipartite states, we prove that nontrivial exact records are equivalent to a…Jie Gu·Nov 4, 2026SaveLearn
Norm Bounds on Sums of Positive Operators with Applications to Monogamy Games and Quantum Key DistributionBounding the acceptance probabilities of quantum measurements is a recurring task in quantum information theory. An acceptance probability averaged over a random measurement setting can be bounded…Salman Beigi, Marco Tomamichel·Nov 4, 2026SaveLearn
Rotated-Frame Determinant Discovery for Ground- and Excited-State Quantum Selected Configuration InteractionQuantum Selected Configuration Interaction (QSCI) constructs a variational determinant space from measurements of a prepared electronic state, but finite-shot sampling can repeatedly observe…Yukihiro Okuno·Nov 4, 2026SaveLearn
Algorithmic Wave-Particle Duality: Pathfinding in Welded Trees is HardIn the welded trees problem, an algorithm navigates a randomly labeled graph formed from two binary trees joined at their leaves through a "weld" of connecting edges. A quantum walk can…Joseph Carolan, Andrew M. Childs, Matthew Coudron et al.·Nov 4, 2026SaveLearn
Hardware Demonstration of Neural-Surrogated Quantum-Enhanced MCMC for Large-Scale Constrained Boltzmann SamplingNeural-surrogated quantum-enhanced Markov chain Monte Carlo (QeMCMC) uses neural networks trained on samples from the quantum approximate optimization algorithm (QAOA) to accelerate Boltzmann…Yuya Kawamata, Keisuke Fujii·Nov 4, 2026SaveLearn
Quantum Advantage in Sensing and Imaging through Coherent Nuisance SuppressionMany sensing and imaging problems must contend with unknown nuisance parameters such as aberrations, background fields, and drift, and the cost of removing these noise sources can dominate the sample…Maxim Sirotin, Aleksandr Mokeev, Ishaan Kannan et al.·Nov 4, 2026SaveLearn