Contact: Philippe JOYEZ, philippe.joyez@cea.fr, +33 1 69 08 74 44/55 29 |
Summary: By exploiting the high kinetic inductance of some superconducting materials we should be able to create a new class of quantum electronic circuits |
Full description: By coupling electromagnetism and non-linear quantum circuits it recently became possible to produce more sophisticated quantum states (e.g. "Schrödinger cats", "NOON" states, …) than is possible with atomic physics techniques and also to demonstrate the operation of rudimentary quantum processors. The growth of this field exploiting genuinely quantum phenomena has been amazing. The specific goal of the internship (and the PhD to follow) is to test predictions according to which a nanowire made of such a material implements a Quantum Phase Slip Junction (QPSJ) which should be the exact quantum-mechanical dual circuit of the well-known Josephson junction (which is the key component of virtually any quantum circuit). More precisely we will propose to check the striking prediction that the charge of a small superconducting electrode connected by a QPSJ is quantized in units of 2e, realizing the dual of an RF-SQUID. |
Technics/methods used during the internship: |