Multipartite entangled states are a key resource for robust quantum communication, measurement-based quantum computing and quantum metrology. We present device capable of emitting large-scale entangled microwave photonic states with a two dimensional entanglement structure. The device consists of a pair of coupled superconducting transmon qubits which are each tuneably coupled to a common output waveguide.…
Author: Ananya Amitabh
Motional modes of a trapped ion are naturally accessible harmonic oscillators.Gottesman-Kitaev-Preskill (GKP) states, also known as grid states, can encode a logical qubit in a quantum harmonic oscillator. In our experiment, we use quantum error correction (de Neeve et al., 2022) to stabilize GKP states of the motion of a trapped ion.This talk will underline…
Information-theoretic quantities, such as the mutual information, are defined to measure correlations between physical systems. In classical information theory, describing systems as random variables, these quantities are defined independently of the spacetime location of the systems. However, in quantum information theory, where systems are associated with density operators on a Hilbert space, only a definition…
Hamiltonian simulation is a domain where quantum computers have the potential to outperform their classical counterparts and is the focal point of current research at many quantum companies, to showcase the performance of their latest quantum computers. In this talk, we’ll discuss a powerful approach called “Quantum Signal Processing (QSP)”- that unifies all quantum algorithms…