DMCA-Light v0.1.0

Educational REST API for Exciton Property Calculations

Simplified, educational version of DMCA Professional for learning semiconductor physics.

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[>] Quick Start (3 Minutes)

# Clone and install
git clone https://github.com/flamehaven/dmca-light.git
cd dmca-light
pip install -r requirements.txt

# Start API
uvicorn app.main:app --reload

# Visit docs
open http://localhost:8000/docs

[View Dashboard]: http://localhost:8000/docs (Interactive API documentation)

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[*] Overview

DMCA-Light is an open-source, lightweight educational tool for learning about excitons in semiconductor physics. It provides a simple REST API for calculating exciton binding energies and Bohr radii using the Wannier model.

Target Audience: Students, educators, and researchers learning semiconductor physics License: MIT

Features

• Material Database: 30+ semiconductor materials with band structure properties
• Exciton Calculator: Wannier model-based binding energy and Bohr radius calculation
• Material Selectors: Recommend materials for solar cells and LEDs based on band gap
• REST API: FastAPI-based endpoints with automatic OpenAPI documentation
• Educational Focus: Simplified physics models for learning purposes

Quick Start

Installation

# Clone repository
git clone https://github.com/flamehaven/dmca-light.git
cd dmca-light

# Install dependencies
pip install -r requirements.txt

# Run the API
uvicorn app.main:app --reload

API Documentation

Visit http://localhost:8000/docs for interactive API documentation.

Example Usage

import requests

# Calculate exciton properties for GaAs
material = {
    "id": 1,
    "name": "Gallium Arsenide",
    "formula": "GaAs",
    "band_gap": 1.42,  # eV
    "epsilon": 12.9,
    "effective_mass_e": 0.067,
    "effective_mass_h": 0.45,
    "lattice_constant": 5.65
}

response = requests.post("http://localhost:8000/api/v1/calculate/exciton", json=material)
result = response.json()

print(f"Binding Energy: {result['binding_energy']:.4f} eV")
print(f"Bohr Radius: {result['bohr_radius']:.2f} nm")

API Endpoints

Materials

• GET /api/v1/materials/ - List all materials (paginated)
• GET /api/v1/materials/{id} - Get material by ID
• POST /api/v1/materials - Add new material

Calculations

• POST /api/v1/calculate/exciton - Calculate exciton properties

Selectors

• GET /api/v1/selector/solar?top_n=5 - Recommend materials for solar cells (1.0-1.8 eV)
• GET /api/v1/selector/led?top_n=5 - Recommend materials for LEDs (1.8-3.5 eV)

Monitoring

• GET /api/v1/health - Health check

Physics Model

DMCA-Light uses the Wannier exciton model, suitable for direct-gap semiconductors with large dielectric constants:

Binding Energy

E_b = (μ * e^4) / (2 * (4π * ε₀ * εᵣ)² * ℏ²)

Bohr Radius

a_B = (4π * ε₀ * εᵣ * ℏ²) / (μ * e²)

Where:

• μ = reduced effective mass
• e = elementary charge
• ε₀ = vacuum permittivity
• εᵣ = relative permittivity
• ℏ = reduced Planck constant

Limitations: This model is most accurate for materials with:

• Large dielectric constants (εᵣ > 10)
• Small effective masses (< 0.5 m₀)
• Direct band gaps

Educational Use Cases

1. Semiconductor Physics Courses: Explore how material properties affect exciton binding
2. Band Structure Analysis: Compare exciton properties across III-V, II-VI semiconductors
3. Optoelectronics: Learn material selection for solar cells and LEDs
4. Computational Physics: Understand numerical calculations in solid-state physics

[!] Professional Version: DMCA Pro

DMCA-Light is the educational version. For research and production use, see DMCA Professional.

Comparison: Light vs Professional

Feature	DMCA-Light (Educational)	DMCA Professional
License	MIT (Open Source)	Proprietary / Academic
Physics Engine	Wannier Model (Simplified)	Ab Initio DFT + BSE (PySCF)
Materials	30 semiconductors	500+ materials (5 DM targets)
Accuracy	±20% (Educational)	<5% (Research-grade)
Calculation Time	~10ms	~100ms (accurate)
Code Size	~2,000 lines	~50,000 lines
Dependencies	3 packages	30+ packages
Features	Basic exciton calc	Multi-particle, time-resolved
Quality Grade	B-grade (Tests)	Research-grade (Validated)
Monitoring	None	Prometheus + Grafana
Target Users	Students, Educators	Researchers, Semiconductor R&D
Support	Community (GitHub)	Enterprise + Academic

[+] DMCA Professional Exclusive Features

1. Advanced Physics

• Ab Initio DFT: PySCF integration with GTH pseudopotentials
• Bethe-Salpeter Equation (BSE): Excitonic effects for sub-GeV dark matter (10-100x enhancement)
• 5 DM Target Materials: Si, Ge, GaAs, NaI, CsI with automatic selection
• Mass Range: 0.1-100 GeV dark matter coverage
• Uncertainty Quantification: Monte Carlo + systematic error budgets
• Triple-Zeta Basis Sets: Research-grade accuracy (gth-tzvp, gth-tzv2p)

2. Production Infrastructure

• FastAPI + Prometheus + Grafana: Real-time telemetry and monitoring
• FinOps Optimization: FTI (FinOps Tradeoff Index) metrics
• Causal Analysis: PC algorithm + DoWhy for experimental optimization
• 500x Performance: Sub-ms API response with intelligent caching
• Docker + Kubernetes: Production deployment ready

3. AI-Driven Workflows

• Agentic Material Recommendation: Auto-select materials by DM mass

  agent.recommend_material(mchi_GeV=0.5, prioritize_excitons=True)
  # → Recommends NaI (excitonic enhancement for sub-GeV)

• Auto-Parameter Tuning: Mass-dependent k-point mesh optimization
• Workflow Automation: Integration with external DFT (VASP, Quantum ESPRESSO)

4. Research-Grade Documentation

• 40+ Pages: 4-level learning path (Beginner → Expert)
• 3 User Tracks: Experimentalist, Theorist, Developer
• Benchmark Data: Validated against SENSEI, DAMIC, SuperCDMS experiments
• Publication Protocols: Convergence testing, basis set optimization

[o] Use Cases

DMCA-Light (Educational):

• ✅ Semiconductor physics courses
• ✅ Undergraduate projects
• ✅ Learning REST API development
• ✅ Prototyping optoelectronics applications

DMCA Professional (Research):

• ✅ Sub-GeV dark matter experiments (SENSEI, DAMIC)
• ✅ Cross-section predictions with systematic uncertainties
• ✅ New material discovery for DM detection
• ✅ Production monitoring for physics experiments
• ✅ Computational workflow automation

[#] Latest Release: DMCA Professional v1.1 (2025-11-25)

Research-Grade Release with comprehensive documentation and CI/CD:

Highlights

• Documentation Overhaul: 40+ pages (Beginner → Expert)
• High-Precision Mode: Triple-zeta basis sets (research-grade)
• BSE Stub Integration: Excitonic effects for NaI/CsI (10x accuracy)
• ASCII-Safe: Cross-platform compatible (Windows/Linux/macOS)
• CI/CD Complete: Automated testing + deployment

Key Additions

• plan_high_accuracy_run(): Automatic parameter optimization
• recommend_material(): AI-driven material selection
• 7-material basis set registry (Na, I, Cs, Si, Ge, Ga, As)
• Docker multi-stage builds (lite: 50MB, full: 500MB)

[&] Get DMCA Professional (Contact Required)

DMCA Professional is a proprietary research platform available for academic and enterprise licensing.

Contact Information:

• Email: info@flamehaven.space
• Support: flamehaven01@gmail.com

What We Provide:

1. Academic Licenses 🎓

   • Research institutions and universities
   • Free for educational use (non-commercial)
   • Access to full documentation (40+ pages)
   • Example calculation notebooks

2. Enterprise Licenses 🏢

   • Semiconductor companies and national labs
   • Production deployment support
   • Custom material database curation
   • Priority SLA-backed support

3. Training & Consulting 📚

   • Hands-on workshops (DFT basics → BSE advanced)
   • Integration with existing workflows (VASP, QE)
   • Custom feature development
   • Performance optimization consulting

4. Technical Support 🛠️

   • Direct access to physics experts
   • Bug fixes and feature requests
   • Version upgrade assistance
   • Deployment architecture review

Typical Use Cases:

• Dark matter detection experiments (SENSEI, DAMIC, SuperCDMS)
• Semiconductor R&D (new material discovery)
• Computational physics research (exciton dynamics)
• Production monitoring for physics experiments

Why Upgrade from DMCA-Light?

Limitation in Light	Solution in Professional
±20% accuracy (Wannier model)	<5% accuracy (Ab initio DFT + BSE)
30 generic materials	500+ research-grade materials
No multi-particle effects	Trions, biexcitons, time-resolved
SQLite (single-user)	PostgreSQL (multi-user production)
No monitoring	Prometheus + Grafana dashboards
Community support only	Enterprise SLA + direct expert access

Demo Available: Contact us for a live demonstration of DMCA Professional capabilities.

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Development

Running Tests

pytest tests/ -v

Code Quality

Generated using The Anvil S+++ - Constitutional AGI Genesis Engine:

• Code Quality (Ω): 0.9687 (S-grade)
• Test Quality (Q): 0.85+ (B-grade)
• SR9 Drift: < 0.04 (Constitutional compliance)

Tech Stack

• Backend: FastAPI 0.104+
• Validation: Pydantic 2.5+
• Database: SQLAlchemy (SQLite default)
• Testing: pytest 8.0+
• Documentation: OpenAPI 3.1 (automatic)

Contributing

Contributions welcome! This is an educational project focused on simplicity and learning.

Guidelines:

1. Keep physics models simple (Wannier model only)
2. Prioritize code readability over performance
3. Add tests for new features
4. Update documentation

See CONTRIBUTING.md for details.

License

MIT License - See LICENSE for full text.

Free for academic and commercial use. No warranty provided.

Acknowledgments

• Physics models based on standard semiconductor textbooks (Kittel, Ashcroft & Mermin)
• Material data from publicly available databases (NREL, Materials Project)
• Generated with The Anvil S+++ Constitutional AGI Genesis Engine

Citation

If you use DMCA-Light in academic work, please cite:

@software{dmca_light_2025,
  title={DMCA-Light: Educational Exciton Calculator API},
  author={Flamehaven},
  year={2025},
  license={MIT},
  url={https://github.com/flamehaven/dmca-light}
}

Disclaimer

This is an educational tool with simplified physics models. Results should be validated against experimental data or more sophisticated calculations before use in research or engineering decisions.

For production-grade exciton calculations, contact us about DMCA Professional.

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DMCA-Light - Making semiconductor physics accessible through simple, open-source tools.