4 papers
Birack Bracket Quivers and Framed Links
Sam Nelson, Haoqi Tom Tang
We introduce birack brackets, skein invariants of birack-colored framed classical and virtual knots and links with values in a commutative unital ring. The multiset of birack brack…
Experimental violation of a Bell-like inequality for causal order
Yu Guo, Hao Tang, Bo-Xuan Wang +9
Quantum mechanics is compatible with scenarios where physical processes happen in an indefinite order. In theory, this feature could be detected through violations of inequalities…
Quantum Entanglement Autodistillation in Baryon Pair Decays
Hai-Long Feng, Hao Tang, Wu-zhong Guo +1
We study the spin-entangled mixed state of a spin-1/2 baryon-antibaryon pair produced in the process e+e- to J/psi, psi(2S) to BBbar. We demonstrate that the spin entanglement of t…
Demonstration of superior communication through thermodynamically free channels in an optical quantum switch
Hao Tang, Yu Guo, Xiao-Min Hu +4
The release of causal structure of physical events from a well-defined order to an indefinite one stimulates remarkable enhancements in various quantum information tasks. Some of t…