Magnets for cyclotrons

Different design aspects of cyclotrons and magnets for cyclotrons are reviewed. The cyclotron magnet design should be considered as an iterative process starting from a simple model that requires the vision of the complete cyclotron and the possibility of integration of all subsystems. Detailed calculations of 2-D and 3-D models follow to optimize the cyclotron magnet and cyclotron

Good Conduct Police Report Issued for Mrs. Zofia Drzewieniecka

Good conduct police report issued for Mrs. Zofia Drzewieniecka by 2nd Polish Corps Military Police signed by Captain S. Zaremba (in English). Ancona, Italy, August 15, 1946.https://digitalcommons.buffalostate.edu/ymcadocs/1007/thumbnail.jp

Beam splitting and Hong-Ou-Mandel interference for stored light

Storing and release of a quantum light pulse in a medium of atoms in the tripod configuration are studied. Two complementary sets of control fields are defined, which lead to independent and complete photon release at two stages. The system constitutes a new kind of a flexible beam splitter in which the input and output ports concern photons of the same direction but well separated in time. A new version of Hong-Ou-Mandel interference is discussed.Comment: 8 pages, 3 figure

Electromagnetically-induced transparency and light storing of a pair of pulses

Electromagnetically-induced transparency and light storing are studied in the case of a medium of atoms in a double Lambda configuration, both in terms of dark- and bright-state polatitons and atomic susceptibility. It is proven that the medium can be made transparent simultaneously for two pulses following their self-adjusting so that a condition for an adiabatic evolution has become fulfilled. Analytic formulas are given for the shapes and phases of the transmitted/stored pulses. The level of transparency can be regulated by adjusting the heights and phases of the control fields.Comment: text +6 figure

Finite temperature excitations of a trapped Bose gas

We present a detailed study of the temperature dependence of the condensate and noncondensate density profiles of a Bose-condensed gas in a parabolic trap. These quantitites are calculated self-consistently using the Hartree-Fock-Bogoliubov equations within the Popov approximation. Below the Bose-Einstein transition the excitation frequencies have a realtively weak temperature dependence even though the condensate is strongly depleted. As the condensate density goes to zero through the transition, the excitation frequencies are strongly affected and approach the frequencies of a noninteracting gas in the high temperature limit.Comment: 4 pages, Latex, 4 postscript figures. Submitted to Physical Review Letter