Cooperative Phenomena

  • Jonathan D. Pritchard
Part of the Springer Theses book series (Springer Theses)


In the previous chapter the atom-light interaction for a single atom was assumed to describe the behaviour of a macroscopic sample, calculating the susceptibility of a uniform gas with density \(\rho \) using the single atom density matrix. This description is valid providing the atoms are both independent and identical. In some circumstances the atoms behave independently but the overall response of the system depends on the sum over all atoms. This is known as collective behaviour. An example is spin-echo, where each atom dephases at a different rate but reversing the phase leads to a restoration of the initial state, resulting in a collective emission.


Entangle State Single Atom Rydberg State Rydberg Atom Spontaneous Decay Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Durham UniversityDurhamUK

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