Main public logs

Combined display of all available logs of QCLab. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

00:46, 22 September 2026 Mahnsoo.Choi talk contribs created page Hyperfine electronic bridge for the excitation of the isomeric state in 229Th nucleus (Created page with "* Speaker: Yingdan Wang (Institute of Theoretical Physics, CAS, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Wang.pdf|Slides (PDF)}} The 229Th nuclear isomer serves as a promising platform for quantum metrology based on nuclear optical transitions. In addition to direct optical excitation, the electronic bridge (EB) mechanism provides an efficient alternative pathway for nuclear state manipulation. Previous studies have...")
00:45, 22 September 2026 Mahnsoo.Choi talk contribs created page Topological Superconductivity in Synthetic Dimensions (Created page with "* Speaker: Wolfgang Belzig (Department of Physics, University of Konstanz, 78567 Konstanz, Germany) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Belzig.pdf|Slides (PDF)}} Superconductivity is a macroscopic quantum phenomenon characterized by a complex order parameter that has both an amplitude and a phase. Coupling multiple superconductors introduces additional phase parameters that can be considered synthetic dimensions. T...")
00:44, 22 September 2026 Mahnsoo.Choi talk contribs created page Subgap modes in two-dimensional magnetic Josephson junctions (Created page with "* Speaker: Fang Yinan (Yunnan University, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Fang.pdf|Slides (PDF)}} Interplay of different orders in mesoscopic magnetic structures near superconducting interfaces can induce rich phenomena ranging from the proximity effect to the topological superconductor. In this talk, we focus on Josephson junctions consisting of two s-wave paired superconductors that interrupted by a ferroma...")
00:43, 22 September 2026 Mahnsoo.Choi talk contribs created page Transverse thermophotovoltaics (Created page with "* Speaker: Gaoming Tang (Graduate School of Chinese Academy of Engineering Physics, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Tang.pdf|Slides (PDF)}} Transverse thermophotovoltaics has been conceptually proposed as a paradigm distinct from conventional junction-based photovoltaics. The talk will introduce a microscopic formalism of this effect in which a transverse electric current emerges in a two dimensional metal...")
00:42, 22 September 2026 Mahnsoo.Choi talk contribs created page Few-Photon Bound States in the Continuum (Created page with "* Speaker: Yue Chang (Beijing Academy of Quantum Information Science, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Yue.pdf|Slides (PDF)}} Bound states in the continuum (BICs) can confine photonic excitations in open systems without relying on conventional cavities or photonic band gaps, making them promising for long-lived quantum storage and few-photon control. In this talk, I will present our recent work on single- and t...")
00:41, 22 September 2026 Mahnsoo.Choi talk contribs created page Maximal coherence of quantum measurement and the resource theory of sharpness (Created page with "* Speaker: Kyunghyun Baek (Yonsei University, Korea) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Baek.pdf|Slides (PDF)}} A resource theory of quantum measurement can be addressed in terms of quantum coherence and measurement sharpness, respectively. The former analyzes the off-diagonal structure of POVM elements in a predetermined basis while the latter analyzes the deviation from trivial, state-independent, measurements....")
00:38, 22 September 2026 Mahnsoo.Choi talk contribs created page Spin fluctuations in the dissipative phase transitions of the quantum Rabi model (Created page with "* Speaker: Jiahui Li (Henan University, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Li.pdf|Slides (PDF)}} We will present our research on dissipative phase transitions in the quantum Rabi model in this report. We highlight that significant spin fluctuations persist in the system’s stationary state, which have important consequences for the phase diagram and critical properties. In the second-order phase transition, ther...")
00:37, 22 September 2026 Mahnsoo.Choi talk contribs created page Nonreciprocal and Geometric Frustration in Dissipative Quantum Spins (Created page with "* Speaker: Myung-Joong Hwang (Duke Kunshan University, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Hwang.pdf|Slides (PDF)}} Abstract: Nonreciprocal interactions create conflicting dynamical objectives that cannot be simultaneously satisfied, leading to nonreciprocal frustration. Geometric frustration, on the other hand, arises when conflicting static objectives in energy minimization cannot be satisfied. In this w...")
00:36, 22 September 2026 Mahnsoo.Choi talk contribs created page Dual-channel multi-product formula (Created page with "* Speaker: Seung Park (Yongsei University, Korea) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Park.pdf|Slides (PDF)}} Product formula (PF) is a promising approach for simulating quantum systems on near-term digital quantum computers. Achieving a desired simulation precision typically requires a polynomially increasing number of Trotter steps, which remains challenging due to the limited capabilities of current quantum hardware....")
00:35, 22 September 2026 Mahnsoo.Choi talk contribs created page Dynamics of spiral magnetic order in an electrically-biased Kondo chain (Created page with "* Speaker: Stefano Chesi (Computational Science Research Center, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Chesi.pdf|Slides (PDF)}} We analyze a one-dimensional system of localized magnetic moments coupled to itinerant electrons, which has been proposed, in conjunction with proximity-induced superconductivity, to host a self-organized topological phase. Here, we characterize the magnetic properties of this model in...")
00:31, 21 September 2026 Mahnsoo.Choi talk contribs created page Josephson Parametric Amplification from Resonators to Traveling Waves (Created page with "* Speaker: Suengju Han (Computational Science Research Center, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Han.pdf|Slides (PDF)}} Abstract Josephson parametric amplifiers (JPAs) provide near-quantum-limited amplification of microwave signals using the nonlinearity of Josephson junctions. In this talk, I will review the basic physics of JPAs, starting from resonator-based JPAs and extending to Josephson traveling-wave pa...")
00:28, 21 September 2026 Mahnsoo.Choi talk contribs created page A Unified Framework for Sequential Quantum Correlation Sharing (Created page with "* Speaker: Changliang Ren (Department of Physics, Hunan Normal University, Changsha 410081, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Ren.pdf|Slides (PDF)}} Quantum measurements not only extract information but also reshape quantum states through measurement backaction, thereby determining how quantum resources can be distributed and recycled. In this talk, recent progress on the sequential sharing of quantum corre...")
00:27, 21 September 2026 Mahnsoo.Choi talk contribs created page Topological States Beyond Translational Symmetry in a Trapped-Ion Quantum Simulator (Created page with "* Speaker: Junki, Kim (Sungkyunkwan University, Korea) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Kim.pdf|Slides (PDF)}} Quantum simulators provide a rich experimental platform for exploring exotic quantum phenomena with a high degree of tunability. Beyond reproducing the physics of conventional materials, they enable the realization of synthetic Hamiltonians with symmetries different from those of naturally occurring systems,...")
00:25, 21 September 2026 Mahnsoo.Choi talk contribs created page Many-body Quantum Phases in Micro-wave Shielded Polar Molecules (Created page with "* Speaker: Tao Shi (Institute of Theoretical Physics, CAS, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Shi.pdf|Slides (PDF)}} abstract: We show that the effective interaction potential between microwave-shielded polar molecules consists of an anisotropic van der Waals-like shielding core and a modified dipolar interaction. This effective potential is validated by comparing its scattering cross-sections with those calculated...")
00:19, 21 September 2026 Mahnsoo.Choi talk contribs created page Toward Scalable Two-Dimensional Fluxonium Quantum Processors: Challenges and Solutions (Created page with "* Speaker: Lijing Jin (Quantum Science Center of Guangdong-Hong Kong-Macao Greater Bay Area, China) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Jin.pdf|Slides (PDF)}} Fluxonium qubits combine long coherence times with strong anharmonicity, making them a promising platform for scalable superconducting quantum processors. While recent experiments have demonstrated high-fidelity operations in multi-qubit fluxonium–transmon–flu...")
00:17, 21 September 2026 Mahnsoo.Choi talk contribs created page Effect of spin-orbit interaction on the quantum transport in quantum-dot Josephson junctions in the Kondo regime (Created page with "* Speaker: Minchul Lee (Kyung Hee University, Korea) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Lee.pdf|Slides (PDF)}} In this talk we present the study on the effect of the spin-orbit interaction on the phase transitions and superconducting transport of quantum-dot Josephson junctions in the Kondo regime. We adopt the simplest model incorporating the spin-orbit interaction, in which the quantum dot has a single spinful level...")
00:16, 21 September 2026 Mahnsoo.Choi talk contribs created page Quantum Synchronization (Created page with "==Quantum Synchronization== * Speaker: Christoph Bruder (University of Basel, Switzerland) * Event: Quantum Technology Workshop 2026 * {{Media/Button|QTW2026-Bruder.pdf|Slides (PDF)}} Experimental progress in optomechanical systems, in trapped-ion setups, and in superconducting circuit-QED architectures has motivated the study of synchronization in quantum systems. In my talk I would like to describe theoretical approaches to the synchronizati...")
00:08, 21 September 2026 Mahnsoo.Choi talk contribs created page Category:Talks (Created page with "All talks delivered at the Quantum Control Lab (or related events).")
07:47, 16 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Kim.pdf (Topological States Beyond Translational Symmetry in a Trapped-Ion Quantum Simulator)
07:47, 16 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Kim.pdf (Topological States Beyond Translational Symmetry in a Trapped-Ion Quantum Simulator)
07:37, 16 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Wang.pdf (Hyperfine electronic bridge for the excitation of the isomeric state in 229Th nucleus)
07:37, 16 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Wang.pdf (Hyperfine electronic bridge for the excitation of the isomeric state in 229Th nucleus)
23:52, 13 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Li.pdf (Spin fluctuations in the dissipative phase transitions of the quantum Rabi model)
23:52, 13 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Li.pdf (Spin fluctuations in the dissipative phase transitions of the quantum Rabi model)
01:35, 12 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Yue.pdf (Few-Photon Bound States in the Continuum)
01:35, 12 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Yue.pdf (Few-Photon Bound States in the Continuum)
01:24, 12 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Fang.pdf (Subgap modes in two-dimensional magnetic Josephson junctions)
01:24, 12 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Fang.pdf (Subgap modes in two-dimensional magnetic Josephson junctions)
01:23, 12 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Belzig.pdf (Topological Superconductivity in Synthetic Dimensions)
01:23, 12 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Belzig.pdf (Topological Superconductivity in Synthetic Dimensions)
01:19, 12 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Tang.pdf (Transverse thermophotovoltaics)
01:19, 12 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Tang.pdf (Transverse thermophotovoltaics)
01:10, 12 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Baek.pdf (Maximal coherence of quantum measurement and the resource theory of sharpness)
01:10, 12 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Baek.pdf (Maximal coherence of quantum measurement and the resource theory of sharpness)
01:15, 11 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Hwang.pdf (Hwang, Myungjoong)
01:15, 11 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Hwang.pdf (Hwang, Myungjoong)
01:14, 11 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Chesi.pdf (Chesi, Stefano)
01:14, 11 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Chesi.pdf (Chesi, Stefano)
00:49, 11 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Park.pdf (Park, Seung)
00:49, 11 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Park.pdf (Park, Seung)
02:10, 10 September 2026 Mahnsoo.Choi talk contribs uploaded a new version of File:QTW2026-Lee.pdf (Some slides have been removed.)
01:16, 10 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Han.pdf (Han, Seungju)
01:16, 10 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Han.pdf (Han, Seungju)
20:58, 9 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Choi.pdf (Fermionic Gaussian Simulation: Applications and Beyond)
20:58, 9 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Choi.pdf (Fermionic Gaussian Simulation: Applications and Beyond)
08:36, 9 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Lee.pdf (Lee, Minchul)
08:36, 9 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Lee.pdf (Lee, Minchul)
08:34, 9 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Bruder.pdf (Bruder, Christoph)
08:34, 9 September 2026 Mahnsoo.Choi talk contribs uploaded File:QTW2026-Bruder.pdf (Bruder, Christoph)
07:57, 9 September 2026 Mahnsoo.Choi talk contribs created page File:QTW2026-Shi.pdf (Shi, Tao)