搜索结果: 1-7 共查到“理论物理学 cooling”相关记录7条 . 查询时间(0.062 秒)
Theory of cooling by flow through narrow pores
Dilution chillers cooling heat atoms quantum states
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2014/12/20
We consider the possibility of adding a stage to a dilution refrigerator to provide additional cooling by “filtering out” hot atoms. Three methods are considered: (1) effusion, where holes having diam...
Selforganisation and sympathetic cooling of multispecies ensembles in a cavity
Selforganisation multispecies
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2011/9/13
We predict concurrent selforganisation and cooling of multispecies ensembles of laser-illuminated polarisable particles within a high-Q cavity mode. Resonant collective scattering of laser light into ...
Optomechanical sideband cooling of a micromechanical oscillator close to the quantum ground state
quantum ground optomechanical micromechanical oscillator
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2010/11/8
Cooling a mesoscopic mechanical oscillator to its quantum ground state is elementary for the preparation and control of low entropy quantum states of large scale objects. Here, we pre-cool a 70-MHz mi...
Dynamical cooling of a single-reservoir open quantum system via optimal control
Dynamical cooling single-reservoir quantum system via optimal control
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2010/11/9
Based on an exact description of open quantum systems in terms of stochastic Liouville-von Neumann equations optimal control is investigated without rotating-wave or Markovian approximations. Within t...
Combined quantum state preparation and laser cooling of a continuous beam of cold atoms
quantum state preparation laser cooling continuous beam cold atoms
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2010/10/21
We propose and solve a simple but very general quantum model of an SU(2)spin interacting with a large external system with N states. The coupling is described by a random hamiltonian in a new general ...
Low-energy muons via frictional cooling
Frictional Cooling Low-energy muon Muon beam Geant4
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2010/3/15
Low-energy muon beams are useful for a range of physics experiments. We consider the production of low-energy muon beams with small energy spreads using frictional cooling. As the input beam, we take ...
Resolved-sideband cooling and measurement of a micromechanical oscillator close to the quantum limit
Resolved-sideband cooling measurement micromechanical oscillator quantum limit
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2010/4/8
The observation of quantum phenomena in macroscopic mechanical oscillators has been a subject of interest since the inception of quantum mechanics. Prerequisite to this regime are both preparation of ...