225 citations · 575 across the 15 of their papers we have counts for
15 papers
Coherence-Based Identification of Carbon-Based Spin Qubits in Hexagonal Boron Nitride from First Principles
Hyeonsu Kim, Jaewook Lee, Huijin Park +1
Carbon-related defects in hexagonal boron nitride are promising room-temperature single-spin qubits and quantum sensors, but their atomic structures remain largely unidentified. He…
A First-principles Computational Framework for Quantum Decoherence in Complex Diamond Spin Environments
Huijin Park, Ha-young Jeong, Hyeonsu Kim +6
Quantum decoherence induced by defects remains a major limitation for solid-state quantum technologies, yet predicting decoherence in realistic materials remains computationally ch…
Floquet analysis of coherence in periodically driven diamond NV ensemble systems
Cuong M. Nguyen, Uijin Ko, Seong-Joo Lee +3
High-density nitrogen-vacancy (NV) ensembles are promising platforms for solid-state quantum sensing, but their performance is limited by dipolar interactions and inhomogeneous dep…
Magnetic-field dependent VB- spin decoherence in hexagonal boron nitrides: A first-principles study
Jaewook Lee, Hyeonsu Kim, Huijin Park +1
The negatively charged boron vacancy (VB-) in h-BN is a spin-1 defect functioning as an optically addressable spin qubit in two-dimensional materials. A precise understanding of it…
Quantum decoherence of nitrogen-vacancy spin ensembles in a nitrogen spin bath in diamond under dynamical decoupling
Huijin Park, Mykyta Onizhuk, Eunsang Lee +5
The negatively charged nitrogen-vacancy (NV) center in diamond has emerged as a leading qubit platform for quantum technology applications. One of the key challenges for NV-based q…
First-principles computational methods for quantum defects in two-dimensional materials: A perspective
Hosung Seo, Viktor Ivády, Yuan Ping
Quantum defects are atomic defects in materials that provide resources to construct quantum information devices such as single-photon emitters (SPEs) and spin qubits. Recently, two…
First-principles theory of extending the spin qubit coherence time in hexagonal boron nitride
Jaewook Lee, Huijin Park, Hosung Seo
Negatively charged boron vacancies (VB-) in hexagonal boron nitride (h-BN) are a rapidly developing qubit platform in two-dimensional materials for solid-state quantum applications…
Electrical Charge Control of h-BN Single Photon Sources
Mihyang Yu, Donggyu Yim, Hosung Seo +1
Colour centres of hexagonal boron nitride (h-BN) have been discovered as promising and practical single photon sources due to their high brightness and narrow spectral linewidth at…
First-principles predictions of out-of-plane group IV and V dimers as high-symmetry high-spin defects in hexagonal boron nitride
Jooyong Bhang, He Ma, Donggyu Yim +2
Hexagonal boron nitride (h-BN) has been recently found to host a variety of quantum point defects, which are promising candidates as single-photon sources for solid-state quantum n…
Qubit guidelines for solid-state spin defects
Gary Wolfowicz, F. Joseph Heremans, Christopher P. Anderson +5
Defects with associated electron and nuclear spins in solid-state materials have a long history relevant to quantum information science going back to the first spin echo experiment…
Polarization and localization of single-photon emitters in hexagonal boron nitride wrinkles
Donggyu Yim, Mihyang Yu, Gichang Noh +2
Color centers in 2-dimensional hexagonal boron nitride (h-BN) have recently emerged as stable and bright single-photon emitters (SPEs) operating at room temperature. In this study,…
Stark Tuning of Single-Photon Emitters in Hexagonal Boron Nitride
Gichang Noh, Daebok Choi, Jin-Hun Kim +4
Single-photon emitters play an essential role in quantum technologies, including quantum computing and quantum communications. Atomic defects in hexagonal boron nitride (h-BN) have…
Designing defect-based qubit candidates in wide-gap binary semiconductors for solid-state quantum technologies
Hosung Seo, He Ma, Marco Govoni +1
The development of novel quantum bits is key to extend the scope of solid-state quantum information science and technology. Using first-principles calculations, we propose that lar…
Quantum decoherence dynamics of divacancy spins in silicon carbide
Hosung Seo, Abram L. Falk, Paul V. Klimov +3
Long coherence times are key to the performance of quantum bits (qubits). Here, we experimentally and theoretically show that the Hahn-echo coherence time (T2) of electron spins as…
Design of defect spins in piezoelectric aluminum nitride for solid-state hybrid quantum technologies
Hosung Seo, Marco Govoni, Giulia Galli
Spin defects in wide-band gap semiconductors are promising systems for the realization of quantum bits, or qubits, in solid-state environments. To date, defect qubits have only bee…