For instance our quantum vacuum has a certain Cosmological constant and the question is can there be other vacuums with different values and if so where's the evidence for this I would like to read it.(adsbygoogle = window.adsbygoogle || []).push({});

How do you derive the Cosmological Constant through something like Quantum field theory or is this something that string theory and other theories are trying to answer?

Thanks

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# How different can quantum vacuums be?

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