Jinwu Ye 2008 EPL 82 16001 doi:10.1209/0295-5075/82/16001
Jinwu Ye
Show affiliationsWe study elementary low-energy excitations inside a supersolid. We find that the coupling between the longitudinal lattice vibration mode and the superfluid mode leads to two longitudinal modes (one upper branch and one lower branch) inside the supersolid, while the transverse modes in the supersolid stay the same as those inside a normal solid. We also work out various experimental signatures of these novel elementary excitations by evaluating the Debye-Waller factor, density-density correlation, vortex loop-vertex loop interactions, specific heat and excess entropy from the vacancies per mole.
Issue 1 (April 2008)
Received 14 August 2007, accepted for publication 4 February 2008
Published 12 March 2008
Jinwu Ye 2008 EPL 82 16001
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