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Simulations in a Dynamic Basis

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If you have a question about this talk, please contact Boyao Liu .

Simulating quantum systems is computationally expensive largely because of the amount of “state” that must be propagated. Classical diffusion can be described efficiently by just two variables, x and p, whereas quantum state diffusion requires tracking a wavefunction with hundreds of complex degrees of freedom. This becomes especially challenging when studying long-timescale behavior, where the wavefunction must be large enough to represent the system across its entire configuration space.

In this talk, I will present a new approach to simulating quantum diffusion which makes use of a dynamic basis to greatly reduce the amount of state we must propagate. I show that with this approach we need only a single complex variable to describe the state of an open harmonic system.

This talk is part of the Surface Physics Seminar series.

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Room 2S7, Donald McIntyre Building, Faculty of Education, 184 Hills Road, Cambridge please sign up to reveal venue Goldsmith's 1 & https://us06web.zoom.us/j/81688365420?pwd=b3RpdHgxNVhWbWQrbXluMUxYNWVtQT09 Meeting ID: 816 8836 5420 Passcode: 047859

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