Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Park, DaeKil"'
When the interaction Hamiltonian is $\widehat{H}_I = \kappa \left(\hat{x}_3 \hat{p}_1 + \hat{p}_3 \hat{p_2} \right)$ for large $\kappa$ and the initial quantum state is $\Psi_{in} (x_1, x_2, x_3) = \prod_{j=1}^3 \phi_j (x_j)$, the joint measurement o
Externí odkaz:
http://arxiv.org/abs/2403.17429
Autor:
Hwang, Mi-Ra, Park, DaeKil
Quantum illumination with asymmetric strategy is examined by making use of the three-mode maximally entangled Gaussian state, which involves one signal and two idler beams. It is shown that this scenario gives less-error probability compared to that
Externí odkaz:
http://arxiv.org/abs/2309.04086
Publikováno v:
Quantum Inf. Proc. 23 (2024) 62
We develop the Euclidean time method of the variational quantum eigensolver for solving the generalized eigenvalue equation $A \ket{\phi_n} = \lambda_n B \ket{\phi_n}$, where $A$ and $B$ are hermitian operators, and $\ket{\phi_n}$ and $\lambda_n$ are
Externí odkaz:
http://arxiv.org/abs/2307.14640
Publikováno v:
Quantum Inf. Proc.23 (2024) 37
In this paper we examine the average R\'{e}nyi entropy $S_{\alpha}$ of a subsystem $A$ when the whole composite system $AB$ is a random pure state. We assume that the Hilbert space dimensions of $A$ and $AB$ are $m$ and $m n$ respectively. First, we
Externí odkaz:
http://arxiv.org/abs/2301.09074
Publikováno v:
Quant. Inf. Proc. 22 (issue 4) (2023) 176
Scrambling is a concept introduced from information loss problem arising in black hole. In this paper we discuss the effect of scrambling from a perspective of pure quantum information theory. We introduce $7$-qubit quantum circuit for a quantum tele
Externí odkaz:
http://arxiv.org/abs/2211.10068
The role of entanglement is discussed in the Harrow-Hassidim-Lloyd (HHL) algorithm. We compute all tripartite entanglement at every steps of the HHL algorithm. The tripartite entanglement is generated in the first quantum phase estimation (QPE) step.
Externí odkaz:
http://arxiv.org/abs/2203.10780
Autor:
Park, DaeKil
We explore how the quantum entanglement is modified in the generalized uncertainty principle (GUP)-corrected quantum mechanics by introducing the coupled harmonic oscillator system. Constructing the ground state $\rho_0$ and its reduced substate $\rh
Externí odkaz:
http://arxiv.org/abs/2203.06557
Publikováno v:
Quantum Information Processing 22 (issue 2) (2023) 98
It is well-known that quantum illumination with a two-mode squeezed vacuum state as an initial entangled bipartite state achieves $6$ dB quantum advantage in the error probability compared to classical coherent-state illumination. Is entanglement the
Externí odkaz:
http://arxiv.org/abs/2111.08941
Autor:
Jung, Eylee, Park, DaeKil
Publikováno v:
Quantum Information Processing 21 (issue 2) (2022) 71
The quantum illumination is examined by making use of the three-mode maximally entangled Gaussian state, which involves one signal and two idler beams. It is shown that the quantum Bhattacharyya bound between $\rho$ (state for target absence) and $\s
Externí odkaz:
http://arxiv.org/abs/2107.05203
Autor:
Park, DaeKil
We discuss classical electrodynamics and the Aharonov-Bohm effect in the presence of the minimal length. In the former we derive the classical equation of motion and the corresponding Lagrangian. In the latter we adopt the generalized uncertainty pri
Externí odkaz:
http://arxiv.org/abs/2101.08906