Circuit quantum electrodynamics

Circuit quantum electrodynamics (circuit QED) provide the means to study the fundamental interaction between light and matter. As in the field of cavity quantum electrodynamics a single photon within a single mode cavity coherently couples to a quantum object (atom). In contrast to cavity QED the photon is stored in a one-dimensional on-chip resonator and the quantum object is no natural atom but an artificial one. These artificial atoms usually are macroscopic devices which exhibit an atom like energy spectrum. The field of circuit QED is a prominent example for quantum information processing and a promising candidate for future quantum computation^[1]

Resonator

The resonant devices used for circuit QED are superconducting coplanar waveguide microwave resonators ^[2].

References

^ Alexandre Blais; et al. (2004). "Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computing". Phys. Rev. A. 69. APS: 062320. doi:10.1103/PhysRevA.69.062320. {{cite journal}}: Explicit use of et al. in: |author= (help)
^ M. Göppl; et al. (2008). "Coplanar waveguide resonators for circuit quantum electrodynamics". J. Appl. Phys. 104. AIP: 113904. doi:10.1063/1.3010859. {{cite journal}}: Explicit use of et al. in: |author= (help)

[1] Alexandre Blais; et al. (2004). "Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computing". Phys. Rev. A. 69. APS: 062320. doi:10.1103/PhysRevA.69.062320. {{cite journal}}: Explicit use of et al. in: |author= (help)

[2] M. Göppl; et al. (2008). "Coplanar waveguide resonators for circuit quantum electrodynamics". J. Appl. Phys. 104. AIP: 113904. doi:10.1063/1.3010859. {{cite journal}}: Explicit use of et al. in: |author= (help)

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