52,338 research outputs found
Bethe ansatz solution of an integrable, non-Abelian anyon chain with D(D_3) symmetry
The exact solution for the energy spectrum of a one-dimensional Hamiltonian
with local two-site interactions and periodic boundary conditions is
determined. The two-site Hamiltonians commute with the symmetry algebra given
by the Drinfeld double D(D_3) of the dihedral group D_3. As such the model
describes local interactions between non-Abelian anyons, with fusion rules
given by the tensor product decompositions of the irreducible representations
of D(D_3). The Bethe ansatz equations which characterise the exact solution are
found through the use of functional relations satisfied by a set of mutually
commuting transfer matrices.Comment: 19 page
Kink-antikink interactions in the double sine-Gordon equation and the problem of resonance frequencies
We studied the kink-antikink collision process for the "double sine-Gordon"
(DSG) equation in 1+1 dimensions at different values of the potential parameter
. For small values of we discuss the problem of resonance frequencies.
We give qualitative explanation of the frequency shift in comparison with the
frequency of the discrete level in the potential well of isolated kink. We show
that in this region of the parameter the effective long-range interaction
between kink and antikink takes place.Comment: 9 pages, LaTeX, 4 figures (eps
Electrophoretic deposition of gradated oxidation resistant coatings on tantalum-10 tungsten alloy
Material selection and electrophoretic deposition studies of high temperature oxidation resistant coatings on tantalum-10 tungsten allo
Time- and frequency-domain polariton interference
We present experimental observations of interference between an atomic spin
coherence and an optical field in a {\Lambda}-type gradient echo memory. The
interference is mediated by a strong classical field that couples a weak probe
field to the atomic coherence through a resonant Raman transition. Interference
can be observed between a prepared spin coherence and another propagating
optical field, or between multiple {\Lambda} transitions driving a single spin
coherence. In principle, the interference in each scheme can yield a near unity
visibility.Comment: 11 pages, 5 figure
Development of oxidation resistant coatings for use above 3500 deg F
Physical property evaluation of oxidation resistant coating materials for high temperature protection of tantalum-base alloy
Radio Observations of the Black Hole Candidate GX 339-4
The black hole candidate GX 339-4 was first detected as a variable radio
source by Sood & Campbell-Wilson in May 1994 with the Molonglo Observatory
Synthesis Telescope (MOST). Since then, several observations have been obtained
with the Australian Telescope Compact Array (ATCA) in order to study the radio
behavior of this source in relation to its soft and hard X-ray activity. We
present new results of high resolution radio observations performed with the
ATCA in order to study the jet-like feature observed in GX 339-4 by Fender et
al (1997). From the ATCA lightcurve at 8640 MHz, we find evidence of quenched
radio emission from GX 339-4.Comment: To appear in Proc. 4th Compton Symposium, AIP pres
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