315 citations · 725 across the 5 of their papers we have counts for
8 papers
Ultrastrong coupling regime of cavity QED with phase-biased flux qubits
J. Bourassa, J. M. Gambetta, A. A. Abdumalikov +3
We theoretically study a circuit QED architecture based on a superconducting flux qubit directly coupled to the center conductor of a coplanar waveguide transmission-line resonator…
Spectroscopy of superconducting charge qubits coupled by a Josephson inductance
T. Yamamoto, M. Watanabe, J. Q. You +5
We have designed and experimentally implemented a circuit of inductively-coupled superconducting charge qubits, where a Josephson junction is used as an inductance, and the couplin…
Single artificial-atom lasing
O. Astafiev, K. Inomata, A. O. Niskanen +4
Solid-state superconducting circuits are versatile systems in which quantum states can be engineered and controlled. Recent progress in this area has opened up exciting possibiliti…
Parity effect in superconducting aluminum single electron transistors with spatial gap profile controlled by film thickness
T. Yamamoto, Y. Nakamura, Yu. A. Pashkin +2
We propose a novel method for suppression of quasiparticle poisoning in Al Coulomb blockade devices. The method is based on creation of a proper energy gap profile along the device…
Temperature square dependence of the low frequency 1/f charge noise in the Josephson junction qubits
O. Astafiev, Yu. A. Pashkin, Y. Nakamura +2
To verify the hypothesis about the common origin of the low frequency 1/f noise and the quantum f noise recently measured in the Josephson charge qubits, we study temperature depen…
Quantum noise in the Josephson charge qubit
O. Astafiev, Yu. A. Pashkin, Y. Nakamura +2
We study decoherence of the Josephson charge qubit by measuring energy relaxation and dephasing with help of the single-shot readout. We found that the dominant energy relaxation p…