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quant-ph2025★ 2 cited
Imaginarity measures induced by real part states and the complementarity relations
Jingyan Liu, Yue Sun, Jianwei Xu +1
Complex numbers are indispensable in quantum mechanics and the resource theory of imaginarity has been developed recently. In this paper, we propose a method to construct imaginary…
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(…
quant-ph2025★ 1 cited
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…