Entanglement negativity in extended systems: a field theoretical approach
We report on a systematic approach for the calculation of the negativity in the ground state of a one-dimensional quantum field theory. The partial transpose ρAT2 of the reduced density matrix of a subsystem A = A1 ∪ A2 is explicitly constructed as an imaginary-time path integral and from this the r...
| Hlavní autoři: | , , |
|---|---|
| Médium: | Journal article |
| Jazyk: | English |
| Vydáno: |
2013
|