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Dynamical Casimir effect in dissipative superconducting circuit system

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Abstract

We investigate the possibility of observing in integrated solid-state systems the dynamical Casimir effect, in which photons are created out of vacuum. We use a transmission line resonator on a superconducting chip as the microwave cavity and modulate its properties by coupling it to carefully designed Josephson devices. We evaluate the effect of main decoherence sources and show that our design offers a promising system for experimentally demonstrating the dynamical Casimir effect. Moreover, we also study the squeezing properties of the created photon field and how they depend on the dissipation.

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Authors and Affiliations

  1. Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, 230026, China

    YuNa Zhang, XiWang Luo & ZhengWei Zhou

  2. Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, 230026, China

    YuNa Zhang, XiWang Luo & ZhengWei Zhou

Authors
  1. YuNa Zhang
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  2. XiWang Luo
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  3. ZhengWei Zhou
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Correspondence to ZhengWei Zhou.

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Zhang, Y., Luo, X. & Zhou, Z. Dynamical Casimir effect in dissipative superconducting circuit system. Sci. China Phys. Mech. Astron. 57, 2251–2258 (2014). https://doi.org/10.1007/s11433-014-5600-4

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  • DOI: https://doi.org/10.1007/s11433-014-5600-4

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