2 papers
quant-ph2025
Bargmann invariants of Gaussian states
Jianwei Xu
Given a set of ordered quantum states, described by density operators , the Bargmann invariant of is defined as tr($Ï_{1}Ï_{2}...Ï…
quant-ph2025
Numerical ranges of Bargmann invariants
Jianwei Xu
Bargmann invariants have recently emerged as powerful tools in quantum information theory, with applications ranging from geometric phase characterization to quantum state distingu…