Index OMC_final - Harvard University

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DYNAMICS OF OPTOMECHANICAL ARRAYS Florian Marquardt Departments of Physics and Applied Physics, Yale <strong>University</strong> In this talk I will address novel features that may be observed in multi-mode optomechanical systems. I will describe the impact of multi-mode dynamics on phonon lasing (self-induced optomechanical oscillations). There, Landau-Zener Stueckelberg dynamics of the light field drastically changes the nonlinear dynamics. I will also describe synchronisation of optomechanical self-oscillations in an array of coupled oscillators. 14
NONLINEAR OPTOMECHANICS: QUADRATIC COUPLING AND THE SINGLE-PHOTON REGIME Andreas Nunnenkamp Departments of Physics and Applied Physics, Yale <strong>University</strong> In optomechanical systems optical and mechanical degrees of freedom are coupled via radiation pressure, optical gradient, or photothermal forces. To date, the theoretical literature has focused on systems where the position of the mechanical oscillator is coupled parametrically to the cavity. In this case, the equations can often be linearized and thus solved exactly. Motivated by experiments with the membrane-in-the-middle geometry, I will explore the physics of optomechanical systems in which an optical cavity mode is coupled parametrically to the square of the position of a mechanical oscillator. In particular, I will derive an effective master equation describing two-phonon cooling of the mechanical oscillator and show that for high temperatures and weak coupling, the steady-state phonon number distribution is non-thermal (Gaussian). Moreover, I will discuss systems where the position of the mechanical oscillator is coupled parametrically to the cavity, but the equations cannot be linearized. One example is recent experiments with ultracold atoms in optical resonators which have reached the regime where a single photon displaces the mechanical oscillator by more than its zero-point uncertainty. I will show how this can be detected by probing the outgoing light. Some of these results I will present have been published in PRA 82, 021806(R) (2010). 15
Page 1 and 2: Table of Contents WORKSHOP SCHEDULE
Page 3 and 4: Schedule MONDAY, FEBRUARY 7 Phillip
Page 5 and 6: JAMIL ABO-SHAEER PARTICIPANTS Darpa
Page 7 and 8: MONIKA SCHLEIER-SMITH SWATI SINGH P
Page 9 and 10: TOWARDS QUANTUM SUPERPOSITIONS OF A
Page 11 and 12: LINEAR AND QUADRATIC OPTOMECHANICS
Page 13: OPTOMECHANICS OF A QUANTUM DEGENERA
Page 17 and 18: THE PHOTON BLOCKADE EFFECT IN OPTOM
Page 19 and 20: OPTOMECHANICAL MATTER-WAVE INTERFER
Page 21 and 22: CAVITY OPTOMECHANICS: BEYOND THE GR
Page 23 and 24: CIRCUIT CAVITY ELECTROMECHANICS IN
Page 25 and 26: RADIATION PRESSURE AND QUANTUM NOIS
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