Design of Materials for Quantum Information Systems
Superconducting electronic circuits have been used to implement quantum computers in recent years. In such an implementation, junctions between two superconducting materials (known as Josephson junctions) can behave as quantum bits (or qubits) to perform computations. In order to perform computations, the qubits need to have long decoherence times. Some important factors that affect the decoherence times are the quality of the Josephson junctions and the losses that occur at the interfaces. A detailed understanding of the interfaces in the qubits can lead to discovering principles that can help improve their design and implementation. In this regard, we are currently working on developing phase field models for phase separation at the interfaces. This work is being carried out as a part of the SQMS center, a multidisciplinary taskforce established for developing the next generation quantum computers.