Kadanoff transformation

The Kadanoff transformation is a concept in physics used to analyze complex systems, like magnetic materials, by simplifying their details. It involves grouping small parts (like atoms or spins) into larger units called blocks and studying how their collective behavior changes when viewed at different scales. This process helps researchers understand how properties such as magnetism or phase transitions emerge from microscopic interactions by focusing on larger, more manageable units, preserving essential features while reducing complexity. It’s a key step in the renormalization group approach, making it easier to analyze critical phenomena in materials.