[PDF][PDF] Bridging magic and non-gaussian resources via gottesman-kitaev-preskill encoding

O Hahn, G Ferrini, R Takagi - PRX Quantum, 2025‏ - APS
Although the similarity between nonstabilizer states—also known as magic states—in
discrete-variable systems and non-Gaussian states in continuous-variable systems has …

Complexity of quantum circuits via sensitivity, magic, and coherence

K Bu, RJ Garcia, A Jaffe, DE Koh, L Li - Communications in Mathematical …, 2024‏ - Springer
Quantum circuit complexity—a measure of the minimum number of gates needed to
implement a given unitary transformation—is a fundamental concept in quantum …

Extremality of stabilizer states

K Bu - arxiv preprint arxiv:2403.13632, 2024‏ - arxiv.org
We investigate the extremality of stabilizer states to reveal their exceptional role in the space
of all $ n $-qubit/qudit states. We establish uncertainty principles for the characteristic …

Magic class and the convolution group

K Bu, A Jaffe, Z Wei - arxiv preprint arxiv:2402.05780, 2024‏ - arxiv.org
The classification of many-body quantum states plays a fundamental role in the study of
quantum phases of matter. In this work, we propose an approach to classify quantum states …

Fermionic Gaussian Testing and Non-Gaussian Measures via Convolution

X Lyu, K Bu - arxiv preprint arxiv:2409.08180, 2024‏ - arxiv.org
We define fermionic convolution and demonstrate its utility in characterizing fermionic non-
Gaussian components, which are essential to the computational advantage of fermionic …

Displaced Fermionic Gaussian States and their Classical Simulation

X Lyu, K Bu - arxiv preprint arxiv:2411.18517, 2024‏ - arxiv.org
This work explores displaced fermionic Gaussian operators with nonzero linear terms. We
first demonstrate equivalence between several characterizations of displaced Gaussian …