Microwave photonics with superconducting quantum circuits
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TLDR
In the past 20 years, impressive progress has been made both experimentally and theoretically in superconducting quantum circuits, which provide a platform for manipulating microwave photons as mentioned in this paper, and many higher-order effects, unusual and less familiar in traditional cavity quantum electrodynamics with natural atoms, have been experimentally observed.About:
This article is published in Physics Reports.The article was published on 2017-11-30 and is currently open access. It has received 909 citations till now. The article focuses on the topics: Cavity quantum electrodynamics & Quantum optics.read more
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Experimental demonstration of one-shot coherence distillation: realizing N-dimensional strictly incoherent operations
Shao-Jie Xiong,Zhe Sun,Qi-Ping Su,Zheng-Jun Xi,Li Yu,Jinshuang Jin,Jin-Ming Liu,Franco Nori,Chui-Ping Yang +8 more
TL;DR: In this article, a general proposal to realize a type of strictly incoherent operations (SIOs) that can act on N-dimensional (N≥2) states is presented.
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Synthetic spin–orbit coupling and topological polaritons in Janeys–Cummings lattices
Abstract: The interaction between a photon and a qubit in the Janeys–Cummings (JC) model generates a kind of quasiparticle called polariton. While they are widely used in quantum optics, difficulties in engineering-controllable coupling of them severely limit their applications to simulate spinful quantum systems. Here we show that, in the superconducting quantum circuit context, polariton states in the single-excitation manifold of a JC lattice can be used to simulate a spin-1/2 system, based on which tunable synthetic spin–orbit coupling and novel topological polaritons can be generated and explored. The lattice is formed by a sequence of coupled transmission line resonators, each of which is connected to a transmon qubit. Synthetic spin–orbit coupling and the effective Zeeman field of the polariton can both be tuned by modulating the coupling strength between neighboring resonators, allowing for the realization of a large variety of polaritonic topological semimetal bands. Methods for detecting the polaritonic topological edge states and topological invariants are also proposed. Therefore, our work suggests that the JC lattice is a versatile platform for exploring spinful topological states of matter, which may inspire developments of topologically protected quantum optical and information-processing devices.
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Efficient scheme for realizing a multiplex-controlled phase gate with photonic qubits in circuit quantum electrodynamics
TL;DR: In this paper , the authors proposed an efficient scheme to implement a multiplex-controlled phase gate with multiple photonic qubits simultaneously controlling one target qubit based on circuit quantum electrodynamics (QED).
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Improved success probability with greater circuit depth for the quantum approximate optimization algorithm
Andreas Bengtsson,Pontus Vikstål,Christopher Warren,Marika Svensson,Marika Svensson,Xiu Gu,Anton Frisk Kockum,Philip Krantz,Christian Križan,Daryoush Shiri,Ida-Maria Svensson,Giovanna Tancredi,Göran Johansson,Per Delsing,Giulia Ferrini,Jonas Bylander +15 more
TL;DR: This work implements the quantum approximate optimization algorithm on a hardware platform, consisting of two superconducting transmon qubits and one parametrically modulated coupler, and solves small instances of the NP (nondeterministic polynomial time)-complete exact-cover problem, with 96.6% success probability.
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Non-Abelian Aharonov-Bohm caging in photonic lattices
TL;DR: In this paper, a non-Abelian AB cage was proposed for a one-dimensional multicomponent rhombic lattice with a nonabbelian background gauge field, where the non-abelian cage depends on the form of the nilpotent interference matrix and the initial state of the lattice.
References
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