Plenary Speakers
We are honored to introduce the distinguished plenary speakers for the 13th International Conference on Quantum Dots (QD 2026). These visionary leaders will share their groundbreaking research and insights into the future of quantum dot technology.
Dr. Victor I. Klimov
(Los Alamos National Lab)
Presentation Title
TBA
Biography
Victor I. Klimov is a Laboratory Fellow and Scientist 6 at Los Alamos National Laboratory, where he founded and leads the Nanotechnology and Advanced Spectroscopy Team. He is internationally recognized as a pioneer in semiconductor quantum dot photophysics and device science.
Dr. Klimov’s research has defined the fundamental understanding of multiexciton dynamics, Auger recombination, optical gain, and spin-exchange interactions in colloidal nanocrystals. His group demonstrated the first colloidal quantum dot lasing (Science, 2000), discovered carrier multiplication (Phys. Rev. Lett., 2004), established universal volume scaling of Auger recombination (Science, 2000), and developed charged-quantum-dot (Nat. Nanotechnol., 2017) and type-(I+II) gain (Nat. Mater., 2025) concepts that enabled sub-single-exciton lasing (Science, 2019) and electrically driven amplified spontaneous emission (Nature, 2023). His recent work on spin-exchange–mediated hot-carrier processes (Nat. Nanotechnol., 2019; Nat. Photonics, 2022; Nat. Mater., 2023) has opened new directions in photochemistry and quantum technologies.
Beyond his scientific contributions, Dr. Klimov has built one of the world’s foremost training environments in quantum dot science. More than 100 postdoctoral fellows and graduate students have trained in his group, including 22 LANL Director’s, Reines, and Oppenheimer Fellows. Over 40 alumni are now professors at leading universities worldwide, and more than 20 have continued at LANL as staff scientists and R&D managers supporting national security missions. Numerous former trainees hold leadership roles in industry, including founders of startups such as UbiQD and Glass to Power.
At LANL, he played a central role in establishing major DOE research centers, including the Center for Integrated Nanotechnologies (CINT) and the Center for Advanced Solar Photophysics (CASP). He has authored more than 400 publications, with over 67,000 citations (h-index 128), and is a Fellow of the American Physical Society and Optica.
Dr. Klimov’s work bridges fundamental science and technology, spanning displays, lasers, photovoltaics, and quantum light sources, while cultivating a lasting global legacy in nanoscience.
Dr. Klimov’s research has defined the fundamental understanding of multiexciton dynamics, Auger recombination, optical gain, and spin-exchange interactions in colloidal nanocrystals. His group demonstrated the first colloidal quantum dot lasing (Science, 2000), discovered carrier multiplication (Phys. Rev. Lett., 2004), established universal volume scaling of Auger recombination (Science, 2000), and developed charged-quantum-dot (Nat. Nanotechnol., 2017) and type-(I+II) gain (Nat. Mater., 2025) concepts that enabled sub-single-exciton lasing (Science, 2019) and electrically driven amplified spontaneous emission (Nature, 2023). His recent work on spin-exchange–mediated hot-carrier processes (Nat. Nanotechnol., 2019; Nat. Photonics, 2022; Nat. Mater., 2023) has opened new directions in photochemistry and quantum technologies.
Beyond his scientific contributions, Dr. Klimov has built one of the world’s foremost training environments in quantum dot science. More than 100 postdoctoral fellows and graduate students have trained in his group, including 22 LANL Director’s, Reines, and Oppenheimer Fellows. Over 40 alumni are now professors at leading universities worldwide, and more than 20 have continued at LANL as staff scientists and R&D managers supporting national security missions. Numerous former trainees hold leadership roles in industry, including founders of startups such as UbiQD and Glass to Power.
At LANL, he played a central role in establishing major DOE research centers, including the Center for Integrated Nanotechnologies (CINT) and the Center for Advanced Solar Photophysics (CASP). He has authored more than 400 publications, with over 67,000 citations (h-index 128), and is a Fellow of the American Physical Society and Optica.
Dr. Klimov’s work bridges fundamental science and technology, spanning displays, lasers, photovoltaics, and quantum light sources, while cultivating a lasting global legacy in nanoscience.
Lecture Summary
Colloidal quantum dots (QDs) have transformed light-emitting technologies over the past three decades. Following the first demonstration of QD lasing in the early 1990s [1] and amplified spontaneous emission (ASE) in colloidal nanocrystals in 2000 [2], the field has evolved from fundamental studies of optical gain to practical device architectures [3]. Today, QDs have fully realized their potential as color-pure emitters in display technologies, including high-end QD televisions. However, their most ambitious promise—solution-processable laser diodes and on-chip optical amplifiers—remains only partially fulfilled.
A central challenge in QD lasing has been ultrafast Auger recombination of gain-active multicarrier states [4]. Recent advances in Auger-decay engineering, including continuously graded “cg-QDs,” have extended biexciton lifetimes into the nanosecond regime, enabling electrically pumped optical gain and ASE [5]. Novel gain concepts—including charged QDs [6] and hybrid type-(I+II) structures [7, 8] supporting direct/indirect biexcitons—have further reduced gain thresholds and enabled spectrally tunable, dye-like liquid lasers. Electrically driven ASE in Bragg-reflection waveguide devices has brought colloidal QD laser diodes to the threshold of realization [9, 10].
Yet key hurdles remain. Achieving uniform electrical pumping in thick QD films required for net optical gain, mitigating Joule heating and thermal degradation at kA cm⁻² current densities, and integrating high-Q, low-loss optical cavities compatible with solution processing are essential next steps. Overcoming these challenges would enable scalable on-chip lasers and optical amplifiers compatible with Si photonics, unlocking applications in integrated CMOS circuits, quantum photonics, and advanced sensing.
This talk will review the trajectory of QD lasing—from early glass-embedded nanocrystals to electrically excited ASE and type-(I+II) liquid lasers—and discuss the path toward practical colloidal QD laser diodes.
A central challenge in QD lasing has been ultrafast Auger recombination of gain-active multicarrier states [4]. Recent advances in Auger-decay engineering, including continuously graded “cg-QDs,” have extended biexciton lifetimes into the nanosecond regime, enabling electrically pumped optical gain and ASE [5]. Novel gain concepts—including charged QDs [6] and hybrid type-(I+II) structures [7, 8] supporting direct/indirect biexcitons—have further reduced gain thresholds and enabled spectrally tunable, dye-like liquid lasers. Electrically driven ASE in Bragg-reflection waveguide devices has brought colloidal QD laser diodes to the threshold of realization [9, 10].
Yet key hurdles remain. Achieving uniform electrical pumping in thick QD films required for net optical gain, mitigating Joule heating and thermal degradation at kA cm⁻² current densities, and integrating high-Q, low-loss optical cavities compatible with solution processing are essential next steps. Overcoming these challenges would enable scalable on-chip lasers and optical amplifiers compatible with Si photonics, unlocking applications in integrated CMOS circuits, quantum photonics, and advanced sensing.
This talk will review the trajectory of QD lasing—from early glass-embedded nanocrystals to electrically excited ASE and type-(I+II) liquid lasers—and discuss the path toward practical colloidal QD laser diodes.
Prof. Pascale Senellart
(CNRS/C2N Palaiseau)
Presentation Title
Hybrid photonic quantum computing with semiconductor quantum dots
Biography
Pascale Senellart holds a PhD in Quantum Physics from the University of Paris VI. Appointed CNRS Research Director in 2011, she has been Professor of Quantum Mechanics at École Polytechnique since 2014, and invited Professor at the Collège de France for 2025-2026.
Her pioneering work at the intersection of nanoscience and quantum optics has led to the development of quantum light sources with record-breaking efficiency. Building on this innovation, she co-founded Quandela to translate quantum technologies from research to industry, positioning herself as a key figure in the international quantum race. Pascale Senellart has received numerous distinctions, including the CNRS Silver Medal (2014), Fellow ofthe Optical Society of America (2018), and the Mergier-Bourdeix Prize (2021), Jean Ricard prize (2023), CNRS innovation medal (2025). She is also an elected member of the French Academy of Sciences and the French Academy of Technologies.
Her pioneering work at the intersection of nanoscience and quantum optics has led to the development of quantum light sources with record-breaking efficiency. Building on this innovation, she co-founded Quandela to translate quantum technologies from research to industry, positioning herself as a key figure in the international quantum race. Pascale Senellart has received numerous distinctions, including the CNRS Silver Medal (2014), Fellow ofthe Optical Society of America (2018), and the Mergier-Bourdeix Prize (2021), Jean Ricard prize (2023), CNRS innovation medal (2025). She is also an elected member of the French Academy of Sciences and the French Academy of Technologies.
Lecture Summary
In this talk, I will present our contribution to the development of a hybrid photonic quantum computing platform based on single InGaAs quantum dots in cavities. I will first describe how laboratory single-photon sources have been transformed into plug-and-play devices, now integrated into our first quantum computing platforms combining single photons with integrated photonic chips manipulating up to 12 photons. I will then discuss scaling roadmaps based on measurement-based quantum computing, which rely on photonic graph states. By exploiting the spin degree of freedom of an electron trapped in a quantum dot, we have recently achieved a key milestone with the generation of various spin–multi-photon entangled states. Finally, I will address the potential of this hybrid spin–photon approach by comparing, as a first example, the resources required to generate a logical-qubit state in fully photonic versus hybrid architectures.
Dr. Seigo Tarucha
(RIKEN)
Presentation Title
Quantum Dot Platform for Quantum Computing
Biography
Seigo Tarucha received the B. E. and M. S. degrees in applied physics from the University of Tokyo in 1976 and 1978, respectively. He joined NTT Basic Research Laboratories in 1978 and received the Ph. D degree in applied physics from the University of Tokyo in 1986. In 1998 he moved to the University of Tokyo as a professor in the Department of Physics and then to the Department of Applied Physics in 2004. In March of 2019 he retired from the University of Tokyo and since then has been fully affiliated to RIKEN Center for Emergent Matter Science (CEMS). He has been running a Quantum Functional System research group in CEMS since 2012 and additionally a research team in Center for Quantum Computing (RQC) since 2021. His current research interests have focused on physics and technology of spin-based quantum computing and topological quantum computing in semiconductor. He received Japan IBM award in 1998, Kubo Ryogo award, The Quantum Devices award in 1998, Nishina award in 2002, National medal with purple ribbon in 2004, Leo Esaki Award in 2007, Achievement award of Japan Applied Physics Society in 2018, and Fujiwara Award in 2023.
Lecture Summary
Over the past two decades, research on quantum computing (QC) has advanced rapidly from theory to experiment across multiple hardware platforms. Among them, quantum dot (QD)–based QC, although initiated later than others, has recently attracted momentum because they combine a compact footprint with compatibility with advanced semiconductor manufacturing. Major players, including Intel, imec, and CEA-Leti, are now actively developing semiconductor qubits.
Our work investigates silicon QDs that host electron spin qubits, bridging device physics and QC applications. Critical hurdles toward practical processors include high-fidelity, fault-tolerant operation, quantum error correction, and scalable architecture. We implement spin qubits in isotopically purified Si/SiGe QDs with an integrated micromagnet and demonstrate single- and two-qubit gates with fidelities, meeting typical thresholds for fault-tolerant quantum computation. In this talk, I will review recent advances in qubit performance, error generation and their correction, and system-level approaches to scaling spin-qubit arrays.
Our work investigates silicon QDs that host electron spin qubits, bridging device physics and QC applications. Critical hurdles toward practical processors include high-fidelity, fault-tolerant operation, quantum error correction, and scalable architecture. We implement spin qubits in isotopically purified Si/SiGe QDs with an integrated micromagnet and demonstrate single- and two-qubit gates with fidelities, meeting typical thresholds for fault-tolerant quantum computation. In this talk, I will review recent advances in qubit performance, error generation and their correction, and system-level approaches to scaling spin-qubit arrays.
Prof. Richard J. Warburton
(University of Basel)
Presentation Title
Low-noise quantum dots in an open microcavity
Biography
Richard J. Warburton is Professor of Experimental Condensed Matter Physics at University of Basel, Switzerland (2010-). Before that Richard worked at Heriot-Watt University, Edinburgh, UK (2000-2009), and at Ludwig-Maximilians-University, Munich, Germany (1993-1999). Richard studied originally at University of Oxford, UK. Richard has a background in semiconductor physics and pursues projects on the physics of semiconductor quantum dots, quantum-dot-based single-photon sources, colour centres in diamond, two-dimensional semiconductors, spin qubits in silicon FinFETS, and wafer-scale probing at low temperature.
Lecture Summary
Low-noise, self-assembled quantum dots can be embedded in an open microcavity. The cavity design preserves the low noise of the starting material, is fully compatible with electrical contacts, and its in situ tunability circumvents the issues related to the random locations and emission frequencies of the quantum dots. The setup has enabled the realisation of a one-dimensional atom, a single-photon source with above-50% end-to-end efficiency, strong-coupling with a cooperativity of 300, photon bound states, single-shot spin readout within 3 ns, cavity-enhanced spin control, and indistinguishable photons in the biexciton cascade. These experiments will be presented along with the first applications.
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