Never heard of it, but looking at the wikipedia page it's pretty simple. It's an older way of thinking about vacuum and particles that is mathematically equivalent to what we do today.
Think of empty space as not empty but brimming with particles at negative (potential?) energy. A normal particle is one that has positive (potential?) energy--it's "above" the sea, and an anti-particle is a hole in the Dirac sea where one of the particles is missing. A particle and a hole annihilate each other if they meet.
Never heard of it, but looking at the wikipedia page it's pretty simple. It's an older way of thinking about vacuum and particles that is mathematically equivalent to what we do today.
Think of empty space as not empty but brimming with particles at negative (potential?) energy. A normal particle is one that has positive (potential?) energy--it's "above" the sea, and an anti-particle is a hole in the Dirac sea where one of the particles is missing. A particle and a hole annihilate each other if they meet.
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