Evaluating Many-Body Stabilizer Rényi Entropy by Sampling Reduced Pauli Strings: Singularities, Volume Law, and Nonlocal Magic
We present a novel quantum Monte Carlo method for evaluating the α-stabilizer Rényi entropy (SRE) for any integer α≥2. By interpreting the α-SRE as partition-function ratios, we eliminate the sign problem in the imaginary-time path integral by sampling reduced Pauli strings within a reduced configur...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2025-08-01
|
| Series: | PRX Quantum |
| Online Access: | http://doi.org/10.1103/pyzr-jmvw |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|