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20032009
most citedGround-state phases of the spin-1/2 J_1-J_2 Heisenberg antiferromagnet on the square lattice: A high-order coupled cluster treatment

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nlin.CD2009★ 19 cited

Marginally Unstable Periodic Orbits in Semiclassical Mushroom Billiards

Jonathan Andreasen, Hui Cao, Jan Wiersig +1

Optical mushroom shaped billiards offer a unique opportunity to isolate and study non-dispersive, marginally unstable periodic orbits. Here we show that the openness of the cavity…