# Information Retrieval and Criticality in Parity-Time-Symmetric Systems

> Research article (Physical Review Letters, 2017) · cited 232× · AI/ML

**Wikidata**: [openalex:W2613972820](https://www.wikidata.org/wiki/openalex:W2613972820)  
**Source**: https://4ort.xyz/entity/information-retrieval-and-criticality-in-parity-time-symmetric-systems