Wednesday, November 19th, 2025
YITP Event: Special seminar---Xiangyi Meng (Rensselaer Polytechnic Institute)
Time: 3:30 PM - 4:30 PM
Location:
Title: Distinct statistical characteristics of quantum communication networks
Abstract: Network science emerged around the year 2000, two decades after the birth of the Internet. As a result, much of its focus has been on explaining (rather than designing) the statistical and structural properties, such as scale-freeness and small-world behavior, of existing real-world networks. However, with the quantum Internet still in its early stages, the question arises: can network science actively contribute to the design of large-scale quantum communication networks? In this talk, I will explore how large-scale quantum communication networks can differ fundamentally from their classical counterparts, especially when incorporating various quantum elements like quantum memories, entanglement routing paradigms, and the intricate challenge of multipartite entanglement. These components have the potential to enhance quantum networks not just at the point-to-point level, but at the synergistic, network-wide scale, revealing novel statistical characteristics. This may open the door to a comprehensive, globally integrated (re)design of quantum communication systems—potentially guided by the principles of network science. 1. Hu, X. et al. Unveiling the importance of nonshortest paths in quantum networks. Sci. Adv. 11, eadt2404 (2025). 2. Meng, X., Hao, B., Ráth, B. & Kovács, I. A. Path Percolation in Quantum Communication Networks. Phys. Rev. Lett. 134, 030803 (2025).
Title: Distinct statistical characteristics of quantum communication networks
Abstract: Network science emerged around the year 2000, two decades after the birth of the Internet. As a result, much of its focus has been on explaining (rather than designing) the statistical and structural properties, such as scale-freeness and small-world behavior, of existing real-world networks. However, with the quantum Internet still in its early stages, the question arises: can network science actively contribute to the design of large-scale quantum communication networks? In this talk, I will explore how large-scale quantum communication networks can differ fundamentally from their classical counterparts, especially when incorporating various quantum elements like quantum memories, entanglement routing paradigms, and the intricate challenge of multipartite entanglement. These components have the potential to enhance quantum networks not just at the point-to-point level, but at the synergistic, network-wide scale, revealing novel statistical characteristics. This may open the door to a comprehensive, globally integrated (re)design of quantum communication systems—potentially guided by the principles of network science. 1. Hu, X. et al. Unveiling the importance of nonshortest paths in quantum networks. Sci. Adv. 11, eadt2404 (2025). 2. Meng, X., Hao, B., Ráth, B. & Kovács, I. A. Path Percolation in Quantum Communication Networks. Phys. Rev. Lett. 134, 030803 (2025).
Thursday, November 20th, 2025
Journal Club: Keith Glennon
Time: 2:00 PM - 3:00 PM
Location: 515
Title: E11 Symmetries in M Theory
Speaker: Keith Glennon
Abstract: We review the argument that E11 is a symmetry of m-theory at low energies. We will suggest the possibility of an E11 symmetry based on dimensionally reduced coset symmetries of 11D SUGRA. We will argue that a certain induced representation of the semi-direct product of the very extended algebra E8+++ = E11, with its vector representation, results in the equations of motion of the bosonic sector of m-theory at low energies, predicting additional effects beyond the supergravity approximation. We will then review recent developments illustrating K27 as the 26D closed bosonic string analogue of E11, and future questions.
Title: E11 Symmetries in M Theory
Speaker: Keith Glennon
Abstract: We review the argument that E11 is a symmetry of m-theory at low energies. We will suggest the possibility of an E11 symmetry based on dimensionally reduced coset symmetries of 11D SUGRA. We will argue that a certain induced representation of the semi-direct product of the very extended algebra E8+++ = E11, with its vector representation, results in the equations of motion of the bosonic sector of m-theory at low energies, predicting additional effects beyond the supergravity approximation. We will then review recent developments illustrating K27 as the 26D closed bosonic string analogue of E11, and future questions.