Linear growth of the entanglement entropy for quadratic Hamiltonians and arbitrary initial states
We prove that the entanglement entropy of any pure initial state of a bipartite bosonic quantum system grows linearly in time with respect to the dynamics induced by any unstable quadratic Hamiltonian. The growth rate does not depend on the initial state and is equal to the sum of certain Lyapuno...
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| Format: | Article |
| Language: | English |
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SciPost
2022-01-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.12.1.021 |