Workshop Description
Quantum Boltzmann machines for logistics scenario generation under uncertainty. Covers QBM theory, applications to promotional planning and demand shock modelling, NISQ constraints, and quantum-inspired alternatives for current deployment.
Logistics planning depends on realistic scenario generation: promotional demand spikes, new product launch trajectories, supply disruptions, and correlated demand shocks across product categories. Classical Restricted Boltzmann Machines (RBMs) and Variational Autoencoders (VAEs) struggle with high-dimensional joint distributions where tail events carry operational significance. Quantum Boltzmann Machines (QBMs), first formalised by Amin et al. (2018), exploit quantum tunnelling to sample from complex energy landscapes more efficiently than classical Markov chain Monte Carlo. On D-Wave hardware, the annealer itself acts as a Boltzmann sampler. On gate-based hardware, variational Gibbs state preparation offers an alternative path. Both approaches remain constrained by current qubit counts and coherence times, and quantum-inspired tensor network methods provide a deployable bridge. This workshop examines the theory, works through logistics-specific applications, and provides an honest assessment of where QBMs outperform classical alternatives and where they do not.
What participants cover
- Classical generative model limitations: where RBMs, VAEs, and MCMC sampling underperform on high-dimensional logistics demand distributions with significant tail events
- QBM theory: transverse-field Boltzmann machines, quantum tunnelling for faster mixing, the Amin et al. (2018) framework, and variational Gibbs state preparation
- Logistics applications: promotional scenario generation, new product launch demand modelling, and supply chain stress testing under extreme disruption events
- Hardware realities: QBM implementation on D-Wave annealers versus gate-based hardware (IBM, Quantinuum), current qubit and connectivity constraints
- Quantum-inspired alternatives: tensor network sampling methods and classical Boltzmann accelerators deployable on current infrastructure
- Integration architecture: positioning QBMs as scenario generators within existing planning, optimisation, and simulation systems