Parametric effects in circuit quantum electrodynamics

Shumeiko, Vitaly; Wustmann, Waltraut

doi:10.1063/1.5116533

Cited by 37 publications

(23 citation statements)

References 96 publications

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“…The circuit QED with "artificial atoms" (qubits) was the subject of studies [338][339][340][341][342][343][344][345][346][347][348][349][350]. The most recent review on parametric effects in circuit QED can be found in [351].…”

Section: Circuit Dcementioning

confidence: 99%

Fifty Years of the Dynamical Casimir Effect

Dodonov

2020

Physics

158

105

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Section: Circuit Dcementioning

confidence: 99%

Fifty Years of the Dynamical Casimir Effect

Dodonov

2020

Physics

158

105

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“…The success of these experiments was related to the possibility of achieving the effective velocity of the boundary up to 25% of the light velocity in vacuum (although the analogy with the motion of real boundaries is not perfect). Many theoretical papers suggesting further improvements of the experimental schemes were published during the past decade: see more references in [87][88][89][90].…”

Section: Dynamical Casimir Effectmentioning

confidence: 99%

Perspective on Some Recent and Future Developments in Casimir Interactions

2020

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Here, we present a critical review of recent developments in Casimir physics motivated by discoveries of novel materials. Specifically, topologically nontrivial properties of the graphene family, Chern and topological insulators, and Weyl semimetals have diverse manifestations in the distance dependence, presence of fundamental constants, magnitude, and sign of the Casimir interaction. Limited studies of the role of nonlinear optical properties in the interaction are also reviewed. We show that, since many new materials have greatly enhanced the nonlinear optical response, new efficient pathways for investigation of the characteristic regimes of the Casimir force need to be explored, which are expected to lead to new discoveries. Recent progress in the dynamical Casimir effect is also reviewed and we argue that nonlinear media can open up new directions in this field as well.

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“…Such processes were observed already in the very first experiment 5 and also play a pivotal role for the Josephson laser 3 where, however, they mix with fundamental (p = 1) resonances for higher modes ω p = pω 0 of the cavity. Equivalent processes in ac-driven Josephson devices 47 have very recently been observed for p = 3 downconversion. [48][49][50] In the classical description these processes, which based on a quantum picture may be called p-photon creation processes, materialize as (higher-order) parametric resonances in the equations-of-motion.…”

Section: Higher-order Resonancesmentioning

confidence: 99%

Injection locking and synchronization in Josephson photonics devices

Danner,

Padurariu,

Ankerhold

et al. 2021

Preprint

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Injection locking can stabilize a source of radiation, leading to an efficient suppression of noiseinduced spectral broadening and therefore, to a narrow spectrum. The technique is well established in laser physics, where a phenomenological description due to Adler is usually sufficient. Recently, locking experiments were performed in Josephson photonics devices, where microwave radiation is created by inelastic Cooper pair tunneling across a dc-biased Josephson junction connected in-series with a microwave resonator. An in-depth theory of locking for such devices, accounting for the Josephson non-linearity and the specific engineered environments, is lacking.Here, we study injection locking in a typical Josephson photonics device where the environment consists of a single mode cavity, operated in the classical regime. We show that an in-series resistance, however small, is an important ingredient in describing self-sustained Josephson oscillations and enables the locking region. We derive a dynamical equation describing locking, similar to an Adler equation, from the specific circuit equations. The effect of noise on the locked Josephson phase is described in terms of phase slips in a modified washboard potential. For weak noise, the spectral broadening is reduced exponentially with the injection signal. When this signal is provided from a second Josephson device, the two devices synchronize. In the linearized limit, we recover the Kuramoto model of synchronized oscillators. The picture of classical phase slips established here suggests a natural extension towards a theory of locking in the quantum regime.

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Parametric effects in circuit quantum electrodynamics

Cited by 37 publications

References 96 publications

Fifty Years of the Dynamical Casimir Effect

Fifty Years of the Dynamical Casimir Effect

Perspective on Some Recent and Future Developments in Casimir Interactions

Injection locking and synchronization in Josephson photonics devices

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