Charge-insensitive qubit design derived from the Cooper pair box
- J. Koch, Terri M. Yu, R. Schoelkopf
- 28 February 2007
Short dephasing times pose one of the main challenges in realizing a quantum computer. Different approaches have been devised to cure this problem for superconducting qubits, a prime example being…
Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation
- A. Blais, Ren-Shou Huang, A. Wallraff, S. Girvin, R. Schoelkopf
- 7 February 2004
We propose a realizable architecture using one-dimensional transmission line resonators to reach the strong-coupling limit of cavity quantum electrodynamics in superconducting electrical circuits.…
Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics
- A. Wallraff, D. Schuster, R. Schoelkopf
- 9 September 2004
It is shown that the strong coupling regime can be attained in a solid-state system, and the concept of circuit quantum electrodynamics opens many new possibilities for studying the strong interaction of light and matter.
Introduction to quantum noise, measurement, and amplification
- A. Clerk, M. Devoret, S. Girvin, F. Marquardt, R. Schoelkopf
- 26 October 2008
The topic of quantum noise has become extremely timely due to the rise of quantum information physics and the resulting interchange of ideas between the condensed matter and atomic, molecular,…
Quantum theory of cavity-assisted sideband cooling of mechanical motion.
- F. Marquardt, Joe P. J. Chen, A. Clerk, S. Girvin
- PhysicsPhysical Review Letters
- 17 January 2007
It is found that reaching the quantum limit of arbitrarily small phonon numbers requires going into the good-cavity (resolved phonon sideband) regime where the cavity linewidth is much smaller than the mechanical frequency and the corresponding cavity detuning.
Wiring up quantum systems
- R. Schoelkopf, S. Girvin
- 6 February 2008
The emerging field of circuit quantum electrodynamics could pave the way for the design of practical quantum computers, according to researchers at the Massachusetts Institute of Technology.
Observation of high coherence in Josephson junction qubits measured in a three-dimensional circuit QED architecture.
- H. Paik, D. Schuster, R. Schoelkopf
- PhysicsPhysical Review Letters
- 23 May 2011
A new architecture for superconducting quantum circuits employing a three-dimensional resonator that suppresses qubit decoherence while maintaining sufficient coupling to the control signal is introduced, demonstrating that Josephson junction qubits are highly coherent.
Continuous quantum phase transitions
A quantum system can undergo a continuous phase transition at the absolute zero of temperature as some parameter entering its Hamiltonian is varied. These transitions are particularly interesting…
Quantum information processing with circuit quantum electrodynamics
- A. Blais, J. Gambetta, R. Schoelkopf
- 1 December 2006
We theoretically study single and two-qubit dynamics in the circuit QED architecture. We focus on the current experimental design [Wallraff et al., Nature (London) 431, 162 (2004); Schuster et al.,…
Coupling superconducting qubits via a cavity bus
- J. Majer, J. Chow, R. Schoelkopf
- 13 September 2007
These experiments show that two nearby qubits can be readily coupled with local interactions, and show the implementation of a quantum bus, using microwave photons confined in a transmission line cavity, to couple two superconducting qubits on opposite sides of a chip.