Quantum Phase Estimation with Time‐Frequency Qudits in a Single Photon
The work
| Authors | Hsuan‐Hao Lu; Zixuan Hu; Mohammed Saleh Alshaykh; Alexandria Jeanine Moore; Yuchen Wang; Poolad Imany; Andrew Marc Weiner; Sabre Kais |
|---|---|
| Editors | |
| Type | article |
| Year | 2020 |
| Also known as | lu2019quantum |
| Citekey | lu2020quantum |
Where it appeared
| Published in | Advanced Quantum Technologies |
|---|---|
| Publisher | Wiley |
| Volume | 3 |
| Issue | 2 |
| Article number | 1900074 |
Identifiers
| DOI | 10.1002/qute.201900074 |
|---|---|
| ISSN | 2511-9044 |
Access
| Landing page | https://doi.org/10.1002/qute.201900074 |
|---|
From crossref.
Abstract
Abstract The Phase Estimation Algorithm (PEA) is an important quantum algorithm used independently or as a key subroutine in other quantum algorithms. Currently most implementations of the PEA are based on qubits, where the computational units in the quantum circuits are 2D states. Performing quantum computing tasks with higher dimensional states—qudits —has been proposed, yet a qudit‐based PEA has not been realized. Using qudits can reduce the resources needed for achieving a given precision or success probability. Compared to other quantum computing hardware, photonic systems have the advantage of being resilient to noise, but the probabilistic nature of photon–photon interaction makes it difficult to realize two‐photon controlled gates that are necessary components in many quantum algorithms. In this work, an experimental realization of a qudit‐based PEA on a photonic platform is reported, utilizing the high dimensionality in time and frequency degrees of freedom (DoFs) in a single photon. The controlled‐unitary gates can be realized in a deterministic fashion, as the control and target registers are now represented by two DoFs in a single photon. This first implementation of a qudit PEA, on any platform, successfully retrieves any arbitrary phase with one ternary digit of precision.
How it got here
| How it got here | agent via crossref |
|---|---|
| Added | 2026-10-28 01:09 UTC |
| Not denied by | a person 2026-10-29 17:12 UTC |
Cite it as
@article{lu2020quantum,
title = {Quantum Phase Estimation with Time‐Frequency Qudits in a Single Photon},
author = {Hsuan‐Hao Lu and Zixuan Hu and Mohammed Saleh Alshaykh and Alexandria Jeanine Moore and Yuchen Wang and Poolad Imany and Andrew Marc Weiner and Sabre Kais},
year = {2020},
journal = {Advanced Quantum Technologies},
publisher = {Wiley},
volume = {3},
number = {2},
issn = {2511-9044},
articleno = {1900074},
doi = {10.1002/qute.201900074},
}
This record lives at https://refs.drheap.org/lu2020quantum/ and will keep
doing so. It used to be called lu2019quantum, and those addresses still resolve to this one.