A relatively minor group topic is concerned with the understanding of opto-mechanical systems that are cooled by means of exploiting radiation pressure, mechanical systems that can exhibit quantum phenonema. We think of probing actual quantum effects in such exciting mechanical systems.

Selected group publications

• Observation of non-Markovian micro-mechanical Brownian motion
  Nature Communications 6, 7606 (2015)
  
• Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus
  Physical Review Research 2, 033244 (2020)
• Cooling by heating
  Physical Review Letters 108, 120602 (2012) 
• A positive tensor network approach for simulating open quantum many-body systems
  Physical Review Letters 116, 237201 (2016)
• The complexity of relating quantum channels to master equations
  Communications of Mathematical Physics 310, 383 (2012) 
  
• Assessing non-Markovian dynamics
  Physical Review Letters 101, 150402 (2008)
  
• Gently modulating opto-mechanical systems
  Physical Review Letters 103, 213603 (2009)
• Creating and probing macroscoping entanglement with light
  Physical Review Letters 99, 250401 (2007)
• Towards mechanical entanglement in nano-electromechanical devices
  Physical Review Letters 93, 190402 (2004) 
• Exact decoherence to pointer states in free open quantum systems is universal
  Physical Review Letters 92, 210401 (2004) 
• Hot entanglement in a simple dynamical model
  Journal of Modern Optics 50, 881 (2003) 
• Quantum and classical correlations in quantum Brownian motion
  Physical Review Letters 89, 137902 (2002)
• Extracting dynamical equations from experimental data is NP-hard
  Physical Review Letters 108, 120503 (2012)
• Entanglement of nanoelectromechanical oscillators by Cooper-pair tunneling
  Physical Review B 88, 035441 (2013)