| 摘要 |
A gyrator for AC signals comprises a Hall effect material, means for coupling an alternating current (I1; I4) into the Hall effect material, means for permeating a Hall effect material with a magnetic field that is perpendicular to the plane or surface of the material, and means far converting a current (I3; I2), which was generated by the current I1 perpendicularly to the electric field generated by in the Hall effect material, into an output voltage (U4; U1). A transformer is provided between at least one conductor loop (1a; 2a) made of a normal-conducting or semi-conducting material and at least one conductor loop (1; 2) made of the Hall effect material for coupling the current (I1; I4) into the Hall effect material and/or for converting the current (I3; I2) in the Hall effect material into the output voltage (U4; U1). It was found that eliminating an inefficient galvanic coupling of the Hall effect material to metallic or semi-conducting conductors minimizes the dissipative losses that occur during the conversion of the input current (I1; I4) into the output voltage (U4; U1). The gyrator can thus also be used for highly sensitive experiments in quantum information processing at low temperatures. |
