Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Lee Jaehak"'
Publikováno v:
Phys. Rev. A 107, 022423 (2023)
Homodyne measurement is a crucial tool widely used to address continuous variables for bosonic quantum systems. While an ideal homodyne detection provides a powerful analysis, e.g. to effectively measure quadrature amplitudes of light in quantum opti
Externí odkaz:
http://arxiv.org/abs/2401.01228
Hybridizing different degrees of freedom or physical platforms potentially offers various advantages in building scalable quantum architectures. We here introduce a fault-tolerant hybrid quantum computation by taking the advantages of both discrete v
Externí odkaz:
http://arxiv.org/abs/2401.00450
Publikováno v:
Phys. Rev. A 108, 066401 (2023)
We show that, contrary to the claim by Kumar [Phys. Rev. A 96, 012332 (2017)], the quantum dual total correlation of an $n$-partite quantum state cannot be represented as the quantum relative entropy between $n-1$ copies of the quantum state and the
Externí odkaz:
http://arxiv.org/abs/2401.00218
Publikováno v:
Phys. Rev. A 104, 032415 (2021)
We propose a non-Gaussianity measure of a multimode quantum state based on the negentropy of quadrature distributions. Our measure satisfies desirable properties as a non-Gaussianity measure, i.e., faithfulness, invariance under Gaussian unitary oper
Externí odkaz:
http://arxiv.org/abs/2109.14353
Publikováno v:
Phys. Rev. Research 4, 043070 (2022)
Quantum technology offers great advantages in many applications by exploiting quantum resources like nonclassicality, coherence, and entanglement. In practice, an environmental noise unavoidably affects a quantum system and it is thus an important is
Externí odkaz:
http://arxiv.org/abs/2104.12307
In this work we investigate how to quantify the coherence of quantum measurements. First, we establish a resource theoretical framework to address the coherence of measurement and show that any statistical distance can be adopted to define a coherenc
Externí odkaz:
http://arxiv.org/abs/2008.03999
Publikováno v:
Phys. Rev. Research 3, 043116 (2021)
While negativity in phase space is a well-known signature of nonclassicality, a wide variety of nonclassical states require their characterization beyond negativity. We establish a framework of nonclassicality in phase space that addresses nonclassic
Externí odkaz:
http://arxiv.org/abs/2005.05739
Autor:
Kim, Ilju, Lertpatipanpong, Pattawika, Yoon, Yongdae, Lee, Jaehak, Hong, Yukyung, Boonruang, Kanokkan, Ryu, Junsun, Baek, Seung Joon
Publikováno v:
In BBA - Molecular Cell Research December 2023 1870(8)
Publikováno v:
npj Quantum Information 5, article number: 49 (2019)
No-cloning theorem, a profound fundamental principle of quantum mechanics, also provides a crucial practical basis for secure quantum communication. The security of communication can be ultimately guaranteed if the output fidelity via communication c
Externí odkaz:
http://arxiv.org/abs/1907.05222