TY - JOUR
T1 - Effective spontaneous PT-symmetry breaking in hybridized metamaterials
AU - Kang, Ming
AU - Liu, Fu
AU - Li, Jensen
PY - 2013/5/17
Y1 - 2013/5/17
N2 - We show that metamaterials can be used as a testing ground to investigate spontaneous symmetry breaking associated with non-Hermitian quantum systems. By exploring the interplay between near-field dipolar coupling and material absorption or gain, we demonstrate various spontaneous breaking processes of the PT symmetry for a series of effective Hamiltonians associated with the scattering matrix. By tuning the coupling parameter, coherent perfect absorption, laser action, and gain-induced complete reflection (π reflector) by using an ultrathin metamaterial can be obtained. Moreover, an ideal PT symmetry can be established effectively in a passive system by exploring the balance between scattering and absorption loss using metamaterials. © 2013 American Physical Society.
AB - We show that metamaterials can be used as a testing ground to investigate spontaneous symmetry breaking associated with non-Hermitian quantum systems. By exploring the interplay between near-field dipolar coupling and material absorption or gain, we demonstrate various spontaneous breaking processes of the PT symmetry for a series of effective Hamiltonians associated with the scattering matrix. By tuning the coupling parameter, coherent perfect absorption, laser action, and gain-induced complete reflection (π reflector) by using an ultrathin metamaterial can be obtained. Moreover, an ideal PT symmetry can be established effectively in a passive system by exploring the balance between scattering and absorption loss using metamaterials. © 2013 American Physical Society.
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U2 - 10.1103/PhysRevA.87.053824
DO - 10.1103/PhysRevA.87.053824
M3 - RGC 22 - Publication in policy or professional journal
SN - 1050-2947
VL - 87
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 53824
ER -