6 papers
Passive realism in the presence of open system dynamics
James Fullwood, Boyu Yang, Weixiang Ye
We introduce the terminology \emph{passive realism} to encapsulate the scale-independent assumption that a physical system's pre-existing properties can be passively observed witho…
On the entropy of a pseudo-density matrix
James Fullwood, Boyu Yang
The pseudo-density matrix (PDM) formalism naturally extends the notion of density operator to the spatiotemporal domain. While PDMs are Hermitian and of unit trace, they admit nega…
Quantum information loss
James Fullwood, Wu-zhong Guo, Boyu Yang
We introduce a measure of information loss for any quantum process that may be modeled by a prepare-evolve-measure scenario: Alice prepares an ensemble of states that gets sent via…
On Dirac-type correlations
James Fullwood, Boyu Yang
Quantum correlations often defy an explanation in terms of fundamental notions of classical physics, such as causality, locality, and realism. While the mathematical theory underpi…
The Born rule as a natural transformation of functors
Boyu Yang, James Fullwood
In this work, we show that the quantum mechanical notions of density operator, positive operator-valued measure (POVM), and the Born rule, are all simultaneously encoded in the cat…
DualAttWaveNet: Multiscale Attention Networks for Satellite Interference Detection
Chunyu Yang, Boyu Yang, Kun Qiu +2
The escalating overlap between non-geostationary orbit (NGSO) and geostationary orbit (GSO) satellite frequency allocations necessitates accurate interference detection methods tha…