DP-4

Official Resources

• Homepage: No public information
• Documentation: Not available
• Source Repository: Not identified
• License: Unknown

Overview

DP-4 appears to be a variant or version designation related to DP-Code (Density Perturbation), likely referring to a specific implementation, version, or research tool within a particular group. Like DP-Code, it has no identifiable public presence as standalone software and is likely internal research terminology or a module designation rather than a distinct public software package.

Status: Research designation, not standalone public software

Context

Relation to DP-Code:

• Variant or version of DP approaches
• Research tool designation
• Internal to specific groups
• Not publicly distributed
• Specialized implementation

Information Gap

• No public repository
• No documentation available
• Research group specific
• Not standalone software
• Internal designation

Recommendation

For density perturbation and many-body calculations, use established codes:

• Yambo: GW/BSE with density response
• BerkeleyGW: Many-body perturbation theory
• WEST: Large-scale calculations
• Quantum ESPRESSO: DFPT and turbo modules

Verification & Sources

Primary sources: None accessible Secondary sources: No verifiable information Confidence: UNCERTAIN - No public information

Verification status: ⚠️ NOT STANDALONE SOFTWARE

• Status: RESEARCH DESIGNATION - Variant of DP-Code
• Recommendation: Use established production codes (Yambo, BerkeleyGW, WEST)