Research output: Contribution to journal › Article › peer-review
Complex Lagrangians and phantom cosmology. / Andrianov, A. A.; Cannata, F.; Kamenshchik, A. Y.
In: Journal of Physics A: Mathematical and General, Vol. 39, No. 32, S02, 11.08.2006, p. 9975-9982.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Complex Lagrangians and phantom cosmology
AU - Andrianov, A. A.
AU - Cannata, F.
AU - Kamenshchik, A. Y.
PY - 2006/8/11
Y1 - 2006/8/11
N2 - Motivated by the generalization of quantum theory for the case of non-Hermitian Hamiltonians with PT symmetry, we show how a classical cosmological model describes a smooth transition from ordinary dark energy to the phantom one. The model is based on a classical complex Lagrangian of a scalar field. Specific symmetry properties analogous to PT in non-Hermitian quantum mechanics lead to purely real equations of motion.
AB - Motivated by the generalization of quantum theory for the case of non-Hermitian Hamiltonians with PT symmetry, we show how a classical cosmological model describes a smooth transition from ordinary dark energy to the phantom one. The model is based on a classical complex Lagrangian of a scalar field. Specific symmetry properties analogous to PT in non-Hermitian quantum mechanics lead to purely real equations of motion.
UR - http://www.scopus.com/inward/record.url?scp=33746733574&partnerID=8YFLogxK
U2 - 10.1088/0305-4470/39/32/S02
DO - 10.1088/0305-4470/39/32/S02
M3 - Article
AN - SCOPUS:33746733574
VL - 39
SP - 9975
EP - 9982
JO - Journal of Physics A: Mathematical and Theoretical
JF - Journal of Physics A: Mathematical and Theoretical
SN - 1751-8113
IS - 32
M1 - S02
ER -
ID: 36469936