AI Summary

Heat can retain a memory of past temperature disturbances. In everyday settings, heat simply flows from warmer to cooler areas, as seen when a cup of coffee cools. However, on the scale of a computer chip or over trillionths of a second, this simple rule breaks down. Heat at a given point and time may still be influenced by earlier or distant temperature changes within the material. A new theoretical framework aims to capture this memory effect in such small, fast systems.

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