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      Josephson Effect in Coherent Roton Aggregates

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          Abstract

          A microwave electromagnetic field can excite a coherent roton aggregate in liquid helium around a dielectric resonator. We show that multiple coherent aggregates are excited simultaneously and predict a Josephson effect between them. The superfluid velocity acts as a "voltage across the weak link" in superconducting Josephson junctions. A comparison with existing experimental data is made.

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          Author and article information

          Journal
          05 June 2013
          Article
          10.1134/S0021364013200095
          1306.1221
          05b31e07-4156-4130-8509-b907ada649c7

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

          History
          Custom metadata
          JETP Letters, Vol. 98, p. 378 (2013)
          2 pages
          cond-mat.other cond-mat.supr-con

          Condensed matter
          Condensed matter

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