Changing phase

Urban Transformation: a Changing Phase of Minna Central Area, Nigeria

Urban centres in the world are undergoing facets of changes, these changes are evident in developing countries and more divergent because urban transformation in developing countries is often accompanied challenges which include traffic congestion, overcrowding, pollution and continuous land use succession. This phenomenon is not different with the central area of Minna, Nigeria. Since 2008 the...

Avoid First Order Quantum Phase Transition by Changing Problem Hamiltonians

In Amin and Choi [1], we show that an adiabatic quantum algorithm for the NP-hard maximum independent set (MIS) problem on a set of special family of graphs in which there are exponentially many local maxima would have the exponentially small minimum spectral gap and thus would require the exponential time, due to the first order quantum phase transition (FQPT). The problem Hamiltonian of the a...

Chirality Changing Phase Transitions in 4d String Vacua

We provide evidence that some four-dimensional N = 1 string vacua with different numbers of generations are connected through phase transitions. The transitions involve going through a point in moduli space where there is a nontrivial fixed point governing the low energy field theory. In an M-theory description, the examples involve wrapped 5-branes leaving one of the ends of the world.

On the possibility of a statistics-changing phase transition

Changing perceptions, changing reality.