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Fate of Multiparticle Resonances: From -Balls to He Droplets
Dam Thanh Son, Mikhail Stephanov, Ho-Ung Yee
We consider a system of nonrelativistic particles which form a near-threshold resonance. Assuming no subset of these particles can form a bound state, the resonance can only de…
Noncommutative gauge symmetry in the fractional quantum Hall effect
Yi-Hsien Du, Umang Mehta, Dam Thanh Son
We show that a system of particles on the lowest Landau level can be coupled to a probe U(1) gauge field in such a way that the theory is invariant under a noncommut…
Unnuclear physics
Hans-Werner Hammer, Dam Thanh Son
We investigate a nonrelativistic version of Georgi's "unparticle physics." We define the unnucleus as a field in a nonrelativistic conformal field theory. Such a field is character…
Rotons in Anyon Superfluids
Yi-Hsien Du, Umang Mehta, Dam Thanh Son
We consider the problem of calculating the excitation spectrum of a gas of nonrelativistic anyons. When the anyons have statistics close to fermionic and the statistical angle has…