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Universal routes to spontaneous PT-symmetry breaking in non-hermitian quantum systems
Universal routes spontaneous PT-symmetry non-hermitian quantum systems
2010/11/8
PT-symmetric systems can have a real spectrum even when their Hamiltonian is non-hermitian, but develop a complex spectrum when the degree of non-hermiticity increases. Here we utilize random-matrix t...
Symmetry breaking orbital anisotropy on detwinned Ba(Fe1-xCox)2As2 above the spin density wave transition
Symmetry breaking orbital anisotropy detwinned Ba
2010/11/17
Nematicity, defined as broken rotational symmetry, has recently been observed in the competing phases in proximity to the superconducting phase in the high TC cuprates (1-2). Similarly, the new iron-b...
Competition between symmetry breaking and onset of collapse in weakly coupled atomic condensates
symmetry breaking atomic condensates
2010/4/6
We analyze the symmetry breaking of matter-wave solitons in a pair of cigar-shaped traps coupled by tunneling of atoms. The model is based on a system of linearly coupled nonpolynomial Schr\"odinger e...
Fermion Determinant with Dynamical Chiral Symmetry Breaking
determinant dynamical symmetry breaking heat kernel
2007/8/15
2002Vol.38No.2pp.185-188DOI:
Fermion Determinant with Dynamical Chiral Symmetry Breaking
LU Qin,1 YANG Hua,1,2 and WANG Qing1,3
1 Department of Physics, Tsinghua Univers...