Journal
PHYSICAL REVIEW A
Volume 90, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.90.045802
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Funding
- NRF of South Africa [85751, 86991, 87814]
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The standard PT-symmetric dimer is a linearly coupled two-site discrete nonlinear Schrodinger equation with one site losing and the other one gaining energy at the same rate. We show that despite gain and loss, the standard PT dimer is a Hamiltonian system. We also produce a Lagrangian formulation for the dimer.
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