The Value of Power in China: How Do Party Membership and Social Networks Affect Pay in Different Ownership Sectors?

Party membership and social networks, as two forms of nonmarket power, have significant effects on personal income. Do the effects vary across different ownership sectors (suoyouzhi xingzhi)? Using a nationally representative survey of urban households (China Household Income Project surveys in 1995 and 2002), we find that (1) party membership can significantly increase personal income, but this effect does not significantly differ between different ownership sectors or between the years 1995 and 2002 and (2) social networks are insignificant in State-Owned Enterprises (SOEs), while they contribute significantly to personal income in non-SOE sectors.Income, Party membership, Social networks, Ownership, Maketization

Duality relation between coherence and path information in the presence of quantum memory

The wave-particle duality demonstrates a competition relation between wave and particle behavior for a particle going through an interferometer. This duality can be formulated as an inequality, which upper bounds the sum of interference visibility and path information. However, if the particle is entangled with a quantum memory, then the bound may decrease. Here, we find the duality relation between coherence and path information for a particle going through a multipath interferometer in the presence of a quantum memory, offering an upper bound on the duality relation which is directly connected with the amount of entanglement between the particle and the quantum memory.Comment: 6 pages, 1 figure, comments are welcom

Insulator-to-metal phase transition in Yb-based Kondo insulators

The periodic Anderson lattice model for the crystalline electric field (CEF)split 4f quartet states is used to describe the Yb-based Kondo insulators/semiconductors. In the slave-boson mean-field approximation, we derive the hybridized quasiparticle bands, and find that decreasing the hybridization difference of the two CEF quartets may induce an insulator-to-metal phase transition. The resulting metallic phase has a hole and an electron Fermi pockets. Such a phase transition may be realized experimentally by applying pressure, reducing the difference in hybridization of the two CEF quartets.Comment: 5 pages, 3 figure