Passive, deterministic photonic CPHASE gate via two-level systems

Abstract

We show that an array of identical two level systems coupled losslessly to a one dimensional waveguide is able to realize a high fidelity conditional phase shift useful for quantum logic. We propose two arrangements of emitters (one that relies on direct interactions between the emitters, and one that does not), and describe possible physical realizations and limitations.

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Cited by in corpus (6)

• Transparency in a periodic chain of quantum emitters strongly coupled to a waveguide
• Violation of Bell inequality by photon scattering on a two-level emitter
• Passive photonic CZ gate with two-level emitters in chiral multi-mode waveguide QED
• Exact solution of a lambda quantum system driven by a two-photon wavepacket
• Tunable quantum logic gate on photonic qubits with a ladder emitter
• Passive and Deterministic Controlled-phase Gate for Single-photon Wavepackets Based on Time-reversal Symmetric Photon Transport