227 citations · 1k across the 32 of their papers we have counts for
32 papers
All-photonic architectural roadmap for scalable quantum computing using Greenberger-Horne-Zeilinger states
Srikrishna Omkar, Seok-Hyung Lee, Yong Siah Teo +2
Linear optical quantum computing is beset by the lack of deterministic entangling operations besides photon loss. Motivated by advancements at the experimental front in determinist…
Global triplewise information trade-off in quantum measurement
Seongjin Hong, Yong-Su Kim, Young-Wook Cho +3
State disturbance by a quantum measurement is at the core of foundational quantum physics and constitutes a fundamental basis of secure quantum information processing. While quanti…
Quantum teleportation is a reversal of quantum measurement
Seung-Woo Lee, Dong-Gil Im, Yoon-Ho Kim +2
We introduce a generalized concept of quantum teleportation in the framework of quantum measurement and reversing operation. Our framework makes it possible to find an optimal prot…
Loss-tolerant concatenated Bell-state measurement with encoded coherent-state qubits for long-range quantum communication
Seok-Hyung Lee, Seung-Woo Lee, Hyunseok Jeong
The coherent-state qubit is a promising candidate for optical quantum information processing due to its nearly-deterministic nature of the Bell-state measurement (BSM). However, it…
Highly photon loss tolerant quantum computing using hybrid qubits
S. Omkar, Y. S. Teo, Seung-Woo Lee +1
We investigate a scheme for topological quantum computing using optical hybrid qubits and make an extensive comparison with previous all-optical schemes. We show that the photon lo…
Optimal quantum phase estimation with generalized multi-component Schrodinger cat states
Seung-Woo Lee, Su-Yong Lee, Jaewan Kim
In this paper, we are interested in detecting the presence of a nearby phase-sensitive object, where traveling light works out under a low-photon loss rate. Here we investigate the…