01jul1:00 pm2:00 pmKyung Soo ChoiInstitute for Quantum Computing/University of Waterloo & the Perimeter Institute for Theoretical Physics1:00 pm - 2:00 pm KST Ewha Womans University Science Building DB106
Kyung Soo Choi Affiliation: Institute for Quantum Computing/University of Waterloo & the Perimeter Institute for Theoretical Physics Talk: July 1, 2019 Many-body quantum electrodynamics (QED) with atoms and photons: A new platform
Kyung Soo Choi
Affiliation: Institute for Quantum Computing/University of Waterloo & the Perimeter Institute for Theoretical Physics
Talk: July 1, 2019
Many-body quantum electrodynamics (QED) with atoms and photons: A new platform for quantum optics
An exciting frontier in quantum information science is the creation and manipulation of quantum systems that are built and controlled quanta by quanta. In this context, there is an active research worldwide to achieve strong and coherent coupling between light and matter as the building block of complex quantum systems. Despite the range of physical behaviours accessible by these QED systems, the low-energy description is inherently masked by mean fields or renormalization groups
In contrast, I describe our comprehensive theory/experiment program towards synthetic quantum matter, where highly-correlated Rydberg quantum material is strongly coupled to quantized optical cavity fields. We call this new domain of quantum optics, “many-body quantum electrodynamics,” where locally gauged quantum materials are entirely driven by quantum optical fluctuations. I describe our initial laboratory effort towards stabilizing a 2D U(1) quantum spin liquid and the observation of cavity-mediated multiparticle plaquette dynamics, corresponding to an emergent visonic topological defect excitation, for the magnetic flux of the compact dynamical gauge field.
From a broader perspective, our work towards many-body QED will open exhilarating opportunities in atomic and condensed matter physics, and quantum information science to explore the consequential features of macroscopic universes living within strongly-correlated systems, and to help answer some of the most profound questions in physics and computer science — from Baryonic asymmetry, to quantum gravity, and to the quantum Church-Turing thesis. We believe that many-body QED is an essential endeavour for our very instinct to explore genuinely surprising phenomena arising from highly-entangled quantum matter, by light.
(Monday) 1:00 pm - 2:00 pm KST
Wolf-Dieter Willi Schneider Academic Affiliation: École polytechnique fédérale de Lausanne Research area: Investigation of magnetic properties of nanostructures with low-temperature scanning tunneling microscopy and
Wolf-Dieter Willi Schneider
Academic Affiliation: École polytechnique fédérale de Lausanne
Research area: Investigation of magnetic properties of nanostructures with low-temperature scanning tunneling microscopy and spectroscopy
Visit Dates: August 31 – September 2
Information about a talk will be updated soon
August 31 (Saturday) - September 2 (Monday)
25sep(sep 25)9:00 am27(sep 27)6:00 pmIBS Conference on Quantum NanoscienceCenter for Quantum Nanoscience at Ewha Womans University in Seoul, South Korea9:00 am - 6:00 pm (27) ECC Building, Ewha Womans University
International IBS Conference on Quantum Nanoscience Date: September 25 - 27, 2019 Location: Center for Quantum Nanoscience at Ewha Womans University
International IBS Conference on Quantum Nanoscience
Date: September 25 – 27, 2019
Location: Center for Quantum Nanoscience at Ewha Womans University in Seoul, South Korea
There are many conferences that cover subfields of Quantum Nanoscience area but as far as the organizers know, there is currently no conference that attempts to bring this broader community under one roof. We will bring together experts and young scientists from all around the globe in this exciting research topic.
Visit https://icqns.org/ to learn more about our conference.
25 (Wednesday) 9:00 am - 27 (Friday) 6:00 pm
Your browser does not support the video tag Andreas Heinrich Seoul Forum Session 3 Break Down the
Session 3 Break Down the Wall – Creativity and Communication
Talk: May 16, 2019, 15:00 ~ 15:30
From Quantum Nanoscience to ‘the Boy and his Atom’
Basic science has become a crucial element for the future success of the Korean economy. In order to promote world-class basic science research, Korea recently created the Institute for Basic Science. In this lecture, we will briefly introduce the research performed at the Center for Quantum Nanoscience, which has the potential to lay the foundation for future quantum technologies, such as quantum computation. Rather than focusing mostly on the science, in this presentation we will discuss why it is of crucial importance to communicate well with a general audience. Nowadays we have many tools at our disposal primarily based on social media, such as YouTube, Facebook and Naver. I will describe my experience at creating engaging content that can draw members of a general audience to science and entice them to ask deep question in a fun environment. Besides social media, this year my team at the Center for Quantum Nanoscience is reaching out to the art community to create the art of quantum and nanoscience – again with the primary goal of engaging a non-scientific audience in the complex and fascinating ideas of this research field.
(Thursday) 3:00 pm - 3:30 pm KST
Theory Workshop "Quantum Spins at the Nanoscale" Date: May 27 - 30, 2019 Location: Center for Quantum Nanoscience at Ewha Womans University in Seoul, South
Theory Workshop “Quantum Spins at the Nanoscale”
Date: May 27 – 30, 2019
Location: Center for Quantum Nanoscience at Ewha Womans University in Seoul, South Korea
The workshop Quantum Spins at the Nanoscale: Recent Theoretical Advances will bring together international experts in the field of Quantum Nanoscience in Ewha Womans University (Korea) between May 27th and 30th 2019 to stimulate discussion and foster collaborations about emerging physics of Quantum Systems from a theoretical perspective.
The workshop Quantum Spins at the Nanoscale: Recent Theoretical Advances will focus on recent developments in the study of open quantum spin systems at the nanoscale where coherence, interactions and topology play an important role.
With the recent development of quantum materials and spin control, it becomes possible to emulate and reveal new complex and intriguing quantum phenomena both at equilibrium but also in the non-equilibrium by driving the systems. Quantum spin control also allows to address fundamental issues related to quantum information theory and spin-based quantum computing.
27 (Monday) 9:00 am - 30 (Thursday) 6:00 pm KST
Jin Kyung Kim Academic Affiliation: Ewha Womans University Talk: April 3, 2019 The World of Quantum Come and learn where quantum nanoscience and art
Jin Kyung Kim
Academic Affiliation: Ewha Womans University
Talk: April 3, 2019
The World of Quantum
Come and learn where quantum nanoscience and art meet at our contest kick-off talk on ‘The World of Quantum’. This talk is specifically towards artists and does not require any scientific background. The subject of the art contest is quantum nanoscience.
Let us shrink down to the nanometer scale. If you shrink even more and go into an atom it becomes the quantum world. Things that are impossible in our daily life happen in that space. You can be in two places at once or pass through walls. You can be both alive and dead. Use your imagination to express the quantum world!
(Wednesday) 1:00 pm - 2:00 pm
See-Hun Yang Academic Affiliation: IBM Research – Almaden Talk: June 4, 2019 Chiral Spintronics Chirality is one of the fundamental asymmetries in nature.
Academic Affiliation: IBM Research – Almaden
Talk: June 4, 2019
Chirality is one of the fundamental asymmetries in nature. Objects with chirality cannot be superimposed onto each other after mirror reflection operation like right and left hands. Archetypal examples of chiral objects are chiral molecules in stereroisomers and chiral magnetic domain walls whose chiralities are set by e.g. Dzyaloshinskii-Moriya interaction. Most importantly moving spins become chiral such that they can reciprocally interact with chiral objects thus allowing “Chiral Spintronics”. This means that spins traveling in a chiral object can be polarized or reversely spin angular momentum can be transferred to the chiral structure. In this talk I will review this emerging new field, the marriage of spintronics to chirality, by discussing recently discovered various novel torques and phenomena from chiral magnetic nanostructures to chiral molecules: spin-orbit torques from perpendicularly magnetized ultrathin films , exchange coupling torque  and novel new phase of domain wall dynamic, chiral exchange drag  from synthetic antiferromagnets, and efficient separation of chiral molecules, enantiomers, by magnetic structure . In the end I will give an overall outlook on Chiral Spintronics and discuss potential applications from the new findings.
 K.-S. Ryu, L. Thomas, S.-H. Yang, and S. S. P. Parkin, “Chiral spin torque at magnetic domain walls”, Nat. Nano. 8, 527 (2013).
 S.-H. Yang, K.-S. Ryu, and S. S. P. Parkin, “Domain-wall velocities of up to 750 m s−1 driven by exchange-coupling torque in synthetic antiferromagnets“, Nat. Nano. 10, 221 (2015).
 S.-H. Yang, C. Garg, and S. S. P. Parkin, “Chiral Exchange Drag and Chirality Oscillations in Synthetic Antiferromagnets”, Nature Physics 10.1038/s41567-019-04383 (2019).
 K. Banerjee-Ghosh, O.B. Dor, F. Tassinari, E. Capua, S. Yochelis, A. Capua, S.-H. Yang, S.S.P. Parkin, S. Sarkar, L. Kronik, L. T. Baczewski, R. Naaman, and Y. Paltiel, “Separation of enantiomers by their enantiospecific interaction with achiral magnetic substrates”, Science 360, 1331 (2018).
(Monday) 1:30 pm - 2:30 pm