Category Archives: Quotes

Great Quotes from Great Physicists.

Steven Weinberg on density matrix formalism

Just a friendly reminder as to why the density matrix formalism is so important and why it should be thought along side the state vector formalism. Nothing that is done in one system can instantaneously affect the density matrix of … Continue reading

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Today’s Quote: How the term “Entanglement” came to be.

“When two systems, of which we know the states by their respective representatives, enter into temporary physical interaction due to known forces between them, and when after a time of mutual influence the systems separate again, then they can no longer be described … Continue reading

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