Topics
IWW 2029 welcomes contributions concerning the theory, computation, interpretation, measurement, and application of Wigner functions and related phase-space methods.
The following scientific areas are intentionally broad. They reflect the interdisciplinary character of the workshop and are not intended to restrict the scope of submissions. The established IWW topics have traditionally included computational and numerical challenges, nanoelectronics, nanostructures, quantum circuits, quantum information, quantum optics, quantum physics, and quantum transport.
Broad Scientific Areas
Fundamental and mathematical aspects of Wigner functions, quasi-probability distributions, phase-space representations, and the Wigner–Weyl–Moyal formalism. This area includes questions concerning interpretation, non-classicality, semiclassical limits, correspondence principles, and relations between classical and quantum dynamics.
Numerical techniques for Wigner equations and related phase-space models, including deterministic, stochastic, particle-based, spectral, grid-based, and Monte Carlo approaches. Contributions addressing stability, accuracy, dimensionality, boundary conditions, open systems, scattering, computational efficiency, and numerical sign problems are particularly relevant.
Wigner-based descriptions of charge, spin, energy, and thermal transport in nanoscale structures and devices. Topics may include tunnelling, coherence, scattering, transient transport, open-boundary systems, semiconductor devices, complex energy bands, phonon interactions, and quantum-electronic components.
Phase-space methods for optical and photonic systems, electromagnetic fields, matter waves, and classical or quantum wave propagation. Relevant subjects include quantum-state reconstruction, coherent and squeezed states, phase noise, interference, optical cavities, parametric processes, and non-classical states of light.
Applications of Wigner functions and quasi-probability methods to quantum information processing, quantum communication, quantum control, quantum measurement, and quantum circuits. Contributions may investigate entanglement, coherence, quantum resources, state preparation, noise, and the characterisation of quantum devices.
Phase-space approaches to condensed-matter systems, low-dimensional materials, nanostructures, many-body dynamics, lattice systems, thermal properties, and material-specific transport phenomena. Work connecting microscopic quantum behaviour with measurable material or device properties is especially welcome.
New applications of Wigner and related phase-space methods in areas such as chemical physics, quantum thermodynamics, high-energy physics, electrodynamics, fluid dynamics, signal analysis, and other fields of science and engineering. Contributions introducing Wigner methods to new problems or connecting previously separate research communities are encouraged.
Examples and Inspiration
The following examples illustrate possible directions for contributions. They are inspired by subjects represented in previous IWW programmes and Books of Abstracts and do not constitute an exhaustive list.
- Mathematical properties and physical interpretation of Wigner functions
- Wigner–Weyl–Moyal methods and quantum phase-space dynamics
- Classical limits, semiclassical approximations, and quantum corrections
- Deterministic and stochastic solvers for the Wigner equation
- Signed-particle and particle-based Monte Carlo methods
- Strategies for reducing numerical sign problems and particle growth
- High-dimensional phase-space simulations and efficient numerical algorithms
- Boundary conditions, absorbing potentials, and modelling of open quantum systems
- Quantum transport in semiconductor and nanoelectronic devices
- Transient, coherent, ballistic, and dissipative charge-carrier transport
- Tunnelling, resonant-tunnelling structures, and quantum interference
- Scattering, phonon interactions, and electrothermal transport
- Complex and non-parabolic band structures
- Wigner formulations for tight-binding and multiband models
- Quantum optics and non-classical states of light
- Squeezed states, Schrödinger-cat states, and minimum-uncertainty states
- Phase diffusion, optical parametric systems, and quantum-noise reduction
- Quantum-state reconstruction and phase-space tomography
- Entanglement, coherence, and quasi-probability negativity
- Quantum information processing, quantum communication, and quantum circuits
- Quantum control and optimal control of wave propagation
- Full counting statistics and ultrafast quantum dynamics
- Wigner methods in electrodynamics and electromagnetic-field modelling
- Quantum hydrodynamics, quantum thermodynamics, and fluid models
- Thermal transport and material properties in ordered and disordered systems
- Novel visualisation, interpretation, and communication of phase-space data
Explore More
For a general overview of the workshop and its purpose, please visit the About IWW page.
For more information about the development of the IWW workshop series, please visit the IWW History page.