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Coordinated optimization of departure sequencing and section-track allocation in railway short-term concentrated departure scenarios based on qubo and hybrid quantum algorithms

arXiv:2606.06543v1 Announce Type: cross Abstract: This study examines the coordinated optimization of departure sequencing and section-track allocation in railway short-term concentrated departure scenarios. A quadratic unconstrained binary optimization (QUBO) model is formulated to represent departure-position assignment and section-track selection within a unified binary framework. Because the quality of a dispatching scheme depends on time-dependent operational interactions that cannot be...

arXiv CS 2d ago

Court orders Flipkart to pay Rs 1.51 lakh for delivering wrong air purifier model

The District Consumer Disputes Redressal Commission, Adilabad in Telangana has held Flipkart and its seller jointly liable for deficiency in service and unfair trade practice after a customer received a different air purifier model than the one he had ordered. The court ordered both opposite parties — Flipkart Internet Private Limited and Consulting Rooms Private Limited — to refund Rs 8,398 with 12 per cent interest and pay Rs 1.51 lakh as compensation along with Rs 7,000 towards litigation...

Times of India 7h ago

Mutually Unbiased Bases for Variational Quantum Initialization: Basis-Union Optimality and Adaptive Family Search

arXiv:2605.16060v2 Announce Type: replace-cross Abstract: We study mutually unbiased bases (MUBs) as structured finite initialization and adaptation families for variational quantum algorithms. The main theoretical result is that, in every dimension admitting a complete set of MUBs, the complete MUB ensemble maximizes isotropic Gaussian random-Hamiltonian width among all unions of d+1 orthonormal bases in C^d. Equivalently, within this basis-union class, it gives the smallest expected...

arXiv CS 9d ago

Qubit-Efficient Quantum Annealing for Stochastic Unit Commitment

arXiv:2502.15917v3 Announce Type: replace-cross Abstract: Stochastic Unit Commitment (SUC) has been proposed to manage the uncertainties driven by renewable integration, but it leads to significant computational complexity. When accelerated by Benders Decomposition (BD), the master problem becomes binary integer programming, which is still NP-hard and computationally demanding for classical methods. Quantum Annealing (QA), known for efficiently solving Quadratic Unconstrained Binary...

arXiv CS 1d ago