1 code implementation • 9 Mar 2021 • J. Eli Bourassa, Nicolás Quesada, Ilan Tzitrin, Antal Száva, Theodor Isacsson, Josh Izaac, Krishna Kumar Sabapathy, Guillaume Dauphinais, Ish Dhand
We demonstrate how useful classes of bosonic qubits -- Gottesman-Kitaev-Preskill (GKP), cat, and Fock states -- can be simulated using this formalism, opening the door to investigating the behaviour of bosonic qubits under Gaussian channels and measurements, non-Gaussian transformations such as those achieved via gate teleportation, and important non-Gaussian measurements such as threshold and photon-number detection.
Quantum Physics
no code implementations • 2 Feb 2021 • Krishna Kumar Sabapathy, Andreas Winter
We show that the positivity of the Wigner function of Gaussian states and measurements provides an elegant way to bound the discriminating power of "linear optics", which we formalise as Gaussian measurement operations augmented by classical (feed-forward) communication (GOCC).
Quantum Physics
1 code implementation • 8 Oct 2019 • Ilan Tzitrin, J. Eli Bourassa, Nicolas C. Menicucci, Krishna Kumar Sabapathy
Encoding a qubit in the continuous degrees of freedom of an oscillator is a significant pursuit of quantum computation.
Quantum Physics Optics
2 code implementations • 12 Sep 2018 • Krishna Kumar Sabapathy, Haoyu Qi, Josh Izaac, Christian Weedbrook
We introduce architectures for near-deterministic implementation of fully tunable weak cubic phase gates requisite for universal quantum computation.
Quantum Physics Optics
