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Understanding another Inequality on Entanglement Entropy Found in Hastings Paper on the Area Law
I am currently reading and trying to reproduce the proof found in the following paper by Hastings, in which he proves that the ground state of 1D gapped systems follow an area law. I am trying to ...
3
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1
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Understanding an Inequality on Entanglement Entropy Found in Hastings Paper on the Area Law
I am currently reading and trying to reproduce the proof found in the following paper by Hastings, in which he proves that the ground state of 1D gapped systems follow an area law. On the second page, ...
1
vote
3
answers
413
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Can a two-qubit state be unentangled via unitary operations?
There is an operator that takes a state for example of the type
$$|\psi \rangle=\frac{1}{\sqrt2}( |0\rangle | 1\rangle+|1\rangle | 0\rangle)$$
Into a not entangled type,and i guess that for unitary ...