Magic behavior of low-dimensional nanostructures

Virtual event

Like in a magic trick, atomically thin layers of specific materials can be mixed and stacked in a well-defined way. Due to the inter-layer interaction and charge transfer, the heterostructure may exhibit sometimes unexpected behavior. This occurs in the case of elemental boron, which is notorious for a large number of stable allotropes not only in 3D bulk, but also in 2D.

CM Seminar: Controlling Emergent Behavior in Quantum Matter from a Theory Perspective

Virtual event

Speaker: Prineha Narang, Assistant Professor at Harvard University   My group’s research focuses on how quantum matter behaves, particularly away from equilibrium, and how we can harness emergent effects in these systems. In this context, I will focus on our newly introduced approaches to describe excited-states in quantum matter, including electron-electron and electron-phonon interactions beyond […]

Jason Alicea: Internally engineered Majorana modes in twisted bilayer graphene

Virtual event

Abstract: Twisted bilayer graphene (TBG) realizes an exquisitely tunable, strongly interacting system featuring superconductivity and various correlated insulating states.  In this talk I will introduce gate-defined wires in TBG as an enticing platform for Majorana-based fault-tolerant qubits.  Our proposal notably relies on “internally” generated superconductivity in TBG – as opposed to “external” superconducting proximity effects […]

CM Seminar – Benjamin Frandsen

Talk title: From Quantum Magnets to Magnetic Thermoelectrics: Short-Range Spin Correlations and the Secrets They Keep Speaker: Benjamin Frandsen, Brigham Young University Abstract: Short-range magnetic correlations have been increasingly recognized in recent years for their importance in contexts as widely varied as geometrically frustrated magnetism and functional magnetocaloric materials. Neutron scattering provides experimental access to […]

CM Seminar – Andrew Potter

https://ubc.zoom.us/j/66879995529?pwd=dHpQb25LSGVZK3ozY243em5tenRWQT09 Meeting ID: 668 7999 5529 Passcode: 113399   Abstract: Quantum computation tantalizing promises efficient solutions to a broad range of classically-hard materials and chemistry simulation problems of interest to both basic science and practical applications. However, nascent quantum processors are severely limited in both memory and accuracy, and remain a long way from surpassing state-of-the-art classical […]

Vedika Khemani: Non-unitary dynamics via spacetime duality

Virtual event

https://ubc.zoom.us/j/66879995529?pwd=dHpQb25LSGVZK3ozY243em5tenRWQT09 Meeting ID: 668 7999 5529 Passcode: 113399   Abstract: The addition of non-unitary ingredients to many-body quantum dynamics has led to a series of exciting developments in recent years, including new out-of-equilibrium entanglement phases and phase transitions enabled by quantum measurements. I will present recent work in which we show that a duality transformation between space and time on one […]

Shanti Deemyad: Physics of Light Dense Matter: Quantum and Classical Effects in Dense lithium

Virtual event

https://ubc.zoom.us/j/66879995529?pwd=dHpQb25LSGVZK3ozY243em5tenRWQT09 Meeting ID: 668 7999 5529 Passcode: 113399   Speaker: Prof. Shanti Deemyad, University of Utah   Restricting the volume of a material, through application of pressure, changes the dominance of interactions within the material, and exposes unnatural states of matter not found in our predominantly adiabatic universe.  One of the most exotic phenomena in […]

Abhay Pasupathy: Recent progress in moiré materials

Virtual event

https://ubc.zoom.us/j/66879995529?pwd=dHpQb25LSGVZK3ozY243em5tenRWQT09 Meeting ID: 668 7999 5529 Passcode: 113399   Speaker: Abhay Pasupathy, Columbia University Abstract: I will discuss two recent sets of experiments from my group on moiré materials. In the first experiment, I will discuss transport experiments on twisted bilayers of the monolayer semiconductor WSe2 (Wang et al, Nature Materials 19, 861 (2020) and […]

Cory R. Dean: Towards realizing twistronics on demand

Virtual event

Title: Towards realizing twistronics on demand Speaker: Cory R. Dean, Department of Physics, Columbia University Abstract: The ability to isolate atomically thin crystals, such as graphene, boron nitride, and the transition metal dichalcogenides, and then mechanically layer them to form new heterostructures has driven a recent revolution in materials design. These layered structures are held […]

Sinéad Griffin: Searching for New Matter

Virtual event

Title: Searching for New Matter Speaker: Sinéad Griffin, Lawrence Berkeley National Laboratory   Abstract: The past decade has seen a huge surge of interest in matter that cannot be described by our standard theories such as Landau-Ginzburg theory or the Standard Model. For example, the theoretical proposal and subsequent experimental realization of topological phases in […]