SVD entanglement entropy
In this paper, we introduce a new quantity called SVD entanglement entropy. This is a generalization of entanglement entropy in that it depends on two different states, as in pre- and post-selection processes. This SVD entanglement entropy takes non-negative real values and is bounded by the logarit...
| मुख्य लेखकों: | , , , |
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| अन्य लेखक: | |
| स्वरूप: | लेख |
| भाषा: | English |
| प्रकाशित: |
Springer Berlin Heidelberg
2024
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| ऑनलाइन पहुंच: | https://hdl.handle.net/1721.1/153284 |
| सारांश: | In this paper, we introduce a new quantity called SVD entanglement entropy. This is a generalization of entanglement entropy in that it depends on two different states, as in pre- and post-selection processes. This SVD entanglement entropy takes non-negative real values and is bounded by the logarithm of the Hilbert space dimensions. The SVD entanglement entropy can be interpreted as the average number of Bell pairs distillable from intermediates states. We observe that the SVD entanglement entropy gets enhanced when the two states are in the different quantum phases in an explicit example of the transverse-field Ising model. Moreover, we calculate the Rényi SVD entropy in various field theories and examine holographic calculations using the AdS/CFT correspondence. |
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