Krishna Kumar Sabapathy

TL;DR: In this article, a full-stack hardware-software system for executing many-photon quantum circuit operations using integrated nanophotonics is presented, comprising a programmable nanophotonic chip operating at room temperature, interfaced with a fully automated control system.

TL;DR: In this paper, operator-sum representations for single-mode bosonic Gaussian channels are developed, and several of their consequences are explored, including the fact that the two-mode metaplectic operators acting as unitary purification of these channels do not mix the position and momentum variables.

TL;DR: The proposed architecture enables exploiting state-of-the-art procedures for the non-deterministic generation of bosonic qubits combined with the strengths of continuous-variable quantum computation, namely the implementation of Clifford gates using easy-to-generate squeezed states.

TL;DR: This work investigates the impact of imperfect GKP states on computational circuits independently of the physical architecture and focuses on a state preparation approach in the photonic domain wherein photon-number-resolving measurements on some modes of Gaussian states produce non-Gaussian states in others.

TL;DR: The proposed framework provides a method to search for the Gaussian circuit and measurement pattern that produces a target non-Gaussian state with optimal fidelity and success probability and has potential far-reaching implications for the generation of bosonic error-correction codes that require non- Gaussian states, resource states for the implementation of non-gaussian gates needed for universal quantum computation, among other applications requiring non-GAussianity.