Abstract
The quantum mechanical propagators of the linear automorphisms of the two-torus (cat maps) determine a projective unitary representation of the theta group Gamma(theta) subset of SL(2, Z). We prove that there exists an appropriate choice of phases in the propagators that defines a proper representation of Gamma(theta). We also give explicit formulae for the propagators in this representation.
Translated title of the contribution | On the multiplicativity of quantum cat maps |
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Original language | English |
Pages (from-to) | 905 - 922 |
Number of pages | 18 |
Journal | Nonlinearity |
Volume | 15 (3) |
DOIs | |
Publication status | Published - May 2002 |
Bibliographical note
Publisher: IOP Publishing LtdOther identifier: IDS number 553VV