TY - JOUR
T1 - Nonadiabatic dynamics of two strongly coupled nanomechanical resonator modes
AU - Faust, Thomas
AU - Rieger, Johannes
AU - Seitner, Maximilian J.
AU - Krenn, Peter
AU - Kotthaus, Jörg P.
AU - Weig, Eva M.
PY - 2012/7/17
Y1 - 2012/7/17
N2 - The Landau-Zener transition is a fundamental concept for dynamical quantum systems and has been studied in numerous fields of physics. Here, we present a classical mechanical model system exhibiting analogous behavior using two inversely tunable, strongly coupled modes of the same nanomechanical beam resonator. In the adiabatic limit, the anticrossing between the two modes is observed and the coupling strength extracted. Sweeping an initialized mode across the coupling region allows mapping of the progression from diabatic to adiabatic transitions as a function of the sweep rate.
AB - The Landau-Zener transition is a fundamental concept for dynamical quantum systems and has been studied in numerous fields of physics. Here, we present a classical mechanical model system exhibiting analogous behavior using two inversely tunable, strongly coupled modes of the same nanomechanical beam resonator. In the adiabatic limit, the anticrossing between the two modes is observed and the coupling strength extracted. Sweeping an initialized mode across the coupling region allows mapping of the progression from diabatic to adiabatic transitions as a function of the sweep rate.
UR - http://www.scopus.com/inward/record.url?scp=84863955509&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.109.037205
DO - 10.1103/PhysRevLett.109.037205
M3 - Article
AN - SCOPUS:84863955509
SN - 0031-9007
VL - 109
JO - Physical Review Letters
JF - Physical Review Letters
IS - 3
M1 - 037205
ER -