



01333nas a2200169   4500008004100000245008100041210006900122260001500191300001100206490000700217520083100224100002001055700001501075700001701090700001901107856003701126       2017                        eng d00aThermodynamic limits for optomechanical systems with conservative potentials0 aThermodynamic limits for optomechanical systems with conservativ  c2017/11/13  a1841060 v963 a<p>The mechanical force from light &ndash; radiation pressure &ndash; provides an intrinsic nonlinear interaction. Consequently, optomechanical systems near their steady state, such as the canonical optical spring, can display non-analytic behavior as a function of external parameters. This non-analyticity, a key feature of thermodynamic phase transitions, suggests that there could be an effective thermodynamic description of optomechanical systems. Here we explicitly define the thermodynamic limit for optomechanical systems and derive a set of sufficient constraints on the system parameters as the mechanical system grows large. As an example, we show how these constraints can be satisfied in a system with Z2 symmetry and derive a free energy, allowing us to characterize this as an equilibrium phase transition.</p>1 aRagole, Stephen1 aXu, Haitan1 aLawall, John1 aTaylor, J., M.  uhttps://arxiv.org/abs/1707.05771