Time-Dependent Dynamics of the Bose-Fermi Mixed Condensed System

We study the monopole oscillation in the bose-fermi mixed condensed system by performing the time-dependent Gross-Pitaevsky (GP) and Vlasov equations. We find that the big damping exists for the fermion oscillation in the mixed system even at zero temperatureComment: 5pages, 2 figure

Atomic Bose-Fermi mixed condensates with Boson-Fermion quasi-bound cluster states

The boson-fermion atomic bound states (composite fermion) and their roles for the phase structures are studied in a bose-fermi mixed condensate of atomic gas in finite temperature and density. The two-body scattering equation is formulated for a boson-fermion pair in the mixed condensate with the Yamaguchi-type potential. By solving the equation, we evaluate the binding energy of a composite fermion, and show that it has small T-dependence in the physical region, because of the cancellation of the boson- and fermion- statistical factors in the equation. We also calculate the phase structure of the BF mixed condensate under the equilibrium B+F -> BF, and discuss the role of the composite fermions: the competitions between the degenerate state of the composite fermions and the Bose-Einstein condensate (BEC) of isolated bosons. The criterion for the BEC realization is obtained from the algebraically-derived phase diagrams at T=0.Comment: 5 pages, 3 figure

Collective Resonances in the Soliton Model Approach to Meson--Baryon Scattering

The proper description of hadronic decays of baryon resonances has been a long standing problem in soliton models for baryons. In this talk I present a solution to this problem in the three flavor Skyrme model that is consistent with large-Nc consistency conditions. As an application I discuss hadronic pentaquark decays and show that predictions based on axial current matrix elements are erroneous.Comment: Contribution to QNP06 (Madrid, June 2006), 3 pages epja styl

PENERAPAN RAGAM HIAS FLORA PADA KERAMIK DALAM MATA PELAJARAN SENI BUDAYA BIDANG SENI RUPA BAGI SISWA SMP NEGERI 2 BANGKALA BARAT KABUPATEN JENEPONTO

Penelitian ini bertujuan untuk mendeskripsikan langkah-langkah penerapan ragam hias flora pada keramik dalam Mata Pelajaran Seni Budaya Bidang Seni Rupa di kelas VIII K SMP Negeri 2 Bangkala Barat Kabupaten Jeneponto. Jumlah sampel dalam penelitian ini adalah 1 kelas yang terdiri dari 24 siswa kelas VIII K. Teknik pengumpulan data dilakukan dengan teknik observasi, wawancara, tes praktik dan dokumentasi. Sedangkan sasaran penelitiannya adalah kegiatan praktik  penerapan ragam hias flora pada bahan keras terutama pada keramik di kelas VIII K SMP Negeri 2 Bangkala Barat Kabupaten Jeneponto. Hasil yang diperoleh dari  penelitian  ini    adalah  sebagai  berikut:  1)  Siswa  melakukan  praktik  sesuai  dengan langkah-langkah penerapan ragam hias flora pada keramik. 2) Siswa megalami kesulitan dalam membuat desain motif ragam hias flora, dan mewarnai motif ragam hias pada keramik. Sesuai sengan hasil penelitian yang telah dilakukan diajukan saran-saran sebagai berikut: 1) Diharapkan kepada Guru agar tetap memberikan praktik-praktik dalam proses pembelajaran, khususnya praktik penerapan ragam hias flora baik pada keramik maupun media lain agar siswa dapat menghargai kesenian nusantara yang ada disekitar kita. 2) Diharapkan kepada siswa SMP Negeri 2 Bangkala Barat agar dapat termotivasi dengan pelaksanaan kegiatan praktik penerapan ragam hias flora khususnya pada keramik lebih baik lagi

Phase separation and collapse in Bose-Fermi mixtures with a Feshbach resonance

We consider a mixture of single-component bosonic and fermionic atoms with an interspecies interaction that is varied using a Feshbach resonance. By performing a mean-field analysis of a two-channel model, which describes both narrow and broad Feshbach resonances, we find an unexpectedly rich phase diagram at zero temperature: Bose-condensed and non-Bose-condensed phases form a variety of phase-separated states that are accompanied by both critical and tricritical points. We discuss the implications of our results for the experimentally observed collapse of Bose-Fermi mixtures on the attractive side of the Feshbach resonance, and we make predictions for future experiments on Bose-Fermi mixtures close to a Feshbach resonance.Comment: 7 pages, 3 figures. Extended versio

Meson Condensation in Dense Matter Revisited

The results for meson condensation in the literature vary markedly depending on whether one uses chiral perturbation theory or the current-algebra-plus-PCAC approach. To elucidate the origin of this discrepancy, we re-examine the role of the sigma-term in meson condensation. We find that the resolution of the existing discrepancy requires a knowledge of terms in the Lagrangian that are higher order in density than hitherto considered.Comment: 10pages, USC(NT)-94-