14 citations · 35 across the 6 of their papers we have counts for
6 papers
Locally Acting Grover Mixers for Constraint-Preserving QAOA
Minjin Choi, Dongkeun Lee, Junghee Ryu
The Grover mixer quantum alternating operator ansatz (GM-QAOA) employs the Grover mixer to confine the quantum evolution to the feasible subspace defined by the problem. Its mixing…
A variational quantum eigensolver tailored to multi-band tight-binding simulations of electronic structures
Dongkeun Lee, Hoon Ryu
We propose a cost-efficient measurement scheme of the variational quantum eigensolver (VQE) for atomistic simulations of electronic structures based on a tight-binding (TB) theory.…
Sampling Error Analysis in Quantum Krylov Subspace Diagonalization
Gwonhak Lee, Dongkeun Lee, Joonsuk Huh
Quantum Krylov subspace diagonalization (QKSD) is an emerging method used in place of quantum phase estimation in the early fault-tolerant era, where limited quantum circuit depth…
Variational quantum state discriminator for supervised machine learning
Dongkeun Lee, Kyunghyun Baek, Joonsuk Huh +1
Quantum state discrimination (QSD) is a fundamental task in quantum information processing with numerous applications. We present a variational quantum algorithm that performs the…
Detection of quantum phase transition in spin-1 chain through multipartite high-order correlations
Dongkeun Lee, Adel Sohbi, Wonmin Son
We design a Bell inequality that is violated by correlations obtained from the ground states of XXZ spin-1 chain with on site anisotropies at the region of phase transition. In ord…
Bell-type correlation at quantum phase transitions in spin-1 chain
Dongkeun Lee, Wonmin Son
For the identification of non-trivial quantum phase, we exploit a Bell-type correlation that is applied to the one-dimensional spin-1 XXZ chain. It is found that our generalization…