logo
nextnano Documentation Logo
pdf

Getting Started

  • About the nextnano Software
  • Downloads
  • Installation
  • License Activation

nextnano Tools

  • 1. nextnanomat
  • 2. nextnano++
    • 2.1. Overview
    • 2.2. Models
    • 2.3. Material Database
    • 2.4. Tutorials
    • 2.5. Art Simulations
    • 2.6. Keywords
      • postprocessor{ }
      • import{ }
      • output{ }
      • run{ }
      • global{ }
      • impurities{ }
      • contacts{ }
      • structure{ }
      • grid{ }
      • classical{ }
      • strain{ }
      • poisson{ }
      • currents{ }
      • quantum{ }
        • debuglevel
        • allow_overlapping_regions
        • region{ }
        • exchange_correlation{ }
        • cbr{ }
      • optics{ }
      • database{ }
    • 2.7. Input Syntax
    • 2.8. Simulation Output
    • 2.9. Command Line
    • 2.10. Maximizing Performance
    • 2.11. Release Notes
    • 2.12. FAQs
  • 3. nextnano³
  • 4. nextnano.NEGF
  • 5. nextnano.MSB
  • 6. nextnanopy
  • 7. nextnanoevo

Cloud Computing

  • HTCondor

Support

  • Support Ticket System
  • Preparing Support Request
  • Frequently Asked Questions (FAQ)

References

  • Books
  • Theses
  • Journal Papers

Old Sites

  • Old Sites
nextnano Documentation
  • 2. nextnano++
  • 2.6. Keywords
  • quantum{ }
  • region{ }
Previous Next

region{ }

Calling sequence

quantum{ region{ } }

Properties

  • usage: optional

  • items: no constraints

Functionality

It is the most important nested group in quantum{ }. It allows to define a region in the simulation domain and assign a specific model to solve the Schrödinger equation inside the defined region.

Nested keywords

  • name
  • no_density
  • x
  • y
  • z
  • array_x{ }, array_y{ }, array_z{ }
  • array2_x{ }, array2_y{ }, array2_z{ }
  • Gamma{}, L{}, X{}, Delta{}, HH{}, LH{}, SO{}
  • kp_6band{ }
  • kp_8band{ }
  • boundary{ }
  • interband_matrix_elements{ }
  • intraband_matrix_elements{ }
  • dipole_moment_matrix_elements{ }
  • transition_energies{ }
  • quantum{ region{ quantize_x{ }, … } }
  • lifetimes{ }
  • excitons{ }
  • output_wavefunctions{ }
  • output_subband_densities{ }
  • quantum{ region{ output_quantum_densities{ } } }
  • quantum{ region{ output_occupations_on_grid{ } } }
  • quantum{ region{ output_energies_on_grid{ } } }
  • output_rotated_inverse_mass_tensor{ }


Last update: 11/04/2025

Previous Next

© Copyright 2025, nextnano GmbH.

Built with Sphinx using a theme provided by Read the Docs.