---
# System prepended metadata

title: Particle Preserving Blocks
tags: [Quantum Computing]

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###### tags: `Quantum Computing`

# Particle Preserving Blocks

When we operate quantum calculations in mulecular systems, it is convinient to assume that the **number of electrons are conserved**. Particle preserving blocks are block of gates that do such operations.

## References for further
https://arxiv.org/abs/2104.05695

