6 papers
Ideal stochastic process modeling with post-quantum quasiprobabilistic theories
Kelvin Onggadinata, Andrew Tanggara, Mile Gu +1
In stochastic modeling, the excess entropy -- the mutual information shared between a process's past and future -- represents the fundamental lower bound of the memory needed to si…
Temporal Kirkwood-Dirac Quasiprobability Distribution and Unification of Temporal State Formalisms through Temporal Bloch Tomography
Zhian Jia, Kavan Modi, Dagomir Kaszlikowski
Temporal quantum states generalize the multipartite density operator formalism to the time domain, enabling a unified treatment of quantum systems with both timelike and spacelike…
Rethinking Collapse: Coupling Quantum States to Classical Bits with quasi-probabilities
Dagomir Kaszlikowski, Pawel Kurzynski
We propose a formulation of quantum measurement within a modified framework of frames, in which a quantum system - a single qubit - is directly coupled to a classical measurement b…
Genuine monogamy relations in no-signaling theories - a geometric approach
Junghee Ryu, Daemin Lee, Jinhyoung Lee +2
Quantum correlations are subject to certain distribution rules represented by so-called monogamy relations. Derivation of monogamy relations for multipartite systems is a non-trivi…
Bi-Contextuality: A Novel Non-Classical Phenomenon in Bipartite Quantum Systems
Gabriel Ruffolo, Nigel Benjamin Lee Junsheng, Kim Mu Young +4
We present and experimentally demonstrate a novel non-classical phenomenon, bi-contextuality, observed in quantum systems prepared by two independent sources. This discovery plays…
Variational Transformer Ansatz for the Density Operator of Steady States in Dissipative Quantum Many-Body Systems
Lu Wei, Zhian Jia, Yufeng Wang +2
The transformer architecture, known for capturing long-range dependencies and intricate patterns, has extended beyond natural language processing. Recently, it has attracted signif…