Hi all,

This Thursday at 11:00 in HIT F13, Axel Pappalardo will tell us about "Energy consumption of a cat-qubit quantum memory”, see below for the abstract.

Best, Ladina

*** Title:

Energy consumption of a cat-qubit quantum memory

Abstract:

The scalability of quantum computers is an important question for the achievability of a useful quantum computers, and the minimization of the energy consumption of the entire stack is a crucial part of this scalability. This work aims at optimizing this cost for a cat-qubit quantum memory, which utilizes the tunable noise bias of cat-qubits which grants an exponential suppression of bit-flip errors with the average photon number and allow one to construct a quantum memory by correcting only phase errors with a simple repetition code. Using the MNR methodology, we breakdown each operation of the repetition code and study their energetic cost, which allows us to optimize the energetic cost for the full stack of a quantum memory, and show that using a cat-qubit architecture, a round of repetition code with a logical error rate of $3.6\times10^{-6}$ could be performed using about $5.0 \si{\mJ}$.