We theoretically study single and two-qubit dynamics in the circuit QED architecture. We
focus on the current experimental design [Wallraff, Nature (London) 431, 162 (2004); …

We present a method to implement ultrafast two-qubit gates valid for the ultrastrong coupling
and deep strong coupling regimes of light-matter interaction, considering state-of-the-art …

Recent demonstrations of macroscopic quantum coherence in Josephson junction based
electronic circuits have opened an entirely new dimension for research and applications in …

We present an experimentally feasible scheme to implement holonomic quantum
computation in the ultrastrong-coupling regime of light-matter interaction. The large …

We propose and study an approach to realize quantum switch for single-photon transport in
a coupled superconducting transmission-line-resonator (TLR) array with one controllable …

We study a coupling (decoupling) method between a superconducting qubit and a data bus
that uses a controllable time-dependent electromagnetic field (TDEF). As in recent …

We propose how to realize a three-step controlled-phase gate of one qubit simultaneously
controlling n qubits in a cavity or coupled to a resonator. The n two-qubit controlled-phase …

We propose an active mechanism for coupling the quantized mode of a nanomechanical
resonator to the persistent current in the loop of a superconducting Josephson junction (or …

Highly entangled states called cluster states are a universal resource for measurement-
based quantum computing (QC). Here we propose an efficient method for producing large …

A central problem for implementing efficient quantum computing is how to realize fast
operations (both one-and two-bit ones). However, this is difficult to achieve for a collection of …