3 papers
quant-ph2026
The stellar decomposition of Gaussian quantum states
Arsalan Motamedi, Yuan Yao, Kasper Nielsen +4
We introduce the stellar decomposition, a novel method for characterizing non-Gaussian states produced by photon-counting measurements on Gaussian states. Given an -mode Gau…
quant-ph2025
Logical channels in approximate Gottesman-Kitaev-Preskill error correction
Mahnaz Jafarzadeh, Jonathan Conrad, Rafael N. Alexander +1
The GKP encoding is a top contender among bosonic codes for fault-tolerant quantum computation. Analysis of the GKP code is complicated by the fact that finite-energy code states l…
quant-ph2025
Exact simulation of realistic Gottesman-Kitaev-Preskill cluster states
Milica Banic, Valerio Crescimanna, J. Eli Bourassa +3
We describe a method for simulating and characterizing realistic Gottesman-Kitaev-Preskill (GKP) cluster states, rooted in the representation of resource states in terms of sums of…