Re: [Cppqed-support] transversal pump

[Andras V. <and...@ui...>]

Hi Raimar,
The reason is historical: the ParticleCavity bundle was designed to cover
the 4 usecases appearing in 1particle1mode.cc, which all fulfill this
requirement for physical reasons, so it seemed a good idea to introduce
this check against erroneous parameter-passing to this script.
That is, it was not designed as a really generic element. (The same applies
to some other interaction elements.)
Please feel free to extend the element (constructor overloads, etc.) at
your leisure, I also do not find it a good idea to write a specialized
custom interaction for this case, especially because we claim that the
supported interaction elements are of "general purpose".
Best regards,
András



On Fri, Mar 14, 2014 at 3:54 PM, Raimar Sandner
<rai...@ui...>wrote:

> Hi András,
>
> I am trying to simulate particles moving along a cavity, pumped
> transversally.
>
> Could you explain to me the reason for UnotEtaeffSignDiscrepancy? Why is it
> not allowed to have Unot<0 (cooling regime for DeltaC<0) but still
> VClass>0?
>
> Also, to compare my simulation to Wolfgang's result, I would need to set
> Unot=0 and still have eta>0 in the Hamiltonian eta(a^dagger m(x) + h.h.).
> The
> constructor of ParticleAlongCavity does not allow to set the parameters
> independently in such a way. Du you think such a generic constructor would
> be
> of general interest to have it in the framework? I would like to avoid
> maintaining my own specialized interaction for this purpose.
>
> Very best regards
> Raimar
>