Topological quenching of the tunnel splitting for a particle in a double-well potential on a planar loop.  [electronic resource] 

 -  Physical review. A, Atomic, molecular, and optical physics  Dec 1994 
 - 4572-4581 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1050-2947 
<br/><br/><label>Standard No.: </label>10.1103/physreva.50.4572  doi