Thursday, November 28, 2019, 16:00
WBGB/019
Michael Marthaler, HQS Quantum Simulations
Abstract:
Quantum computers with 50 or more qubits have been demonstrated and will
most likely also soon be available as cloud computing service. However,
while the number of qubits integrated into a single chip is rising,
decoherence and control errors remain a major limitation. Considering
the limitations of current devices, one of the most natural applications
for quantum computers is the simulation of quantum mechanical problems.
It has been shown that lattice models can be implemented quite
efficiently, independently of the details of the hardware available and
the model under investigation. We will discuss how simulation of lattice
models can be implemented on quantum computers and how control errors
act on different algorithmic implementations. The concrete model we have
studied is the Hubbard model, but it remains to be seen, if there are
also other lattice models that could be of interest beyond condensed
matter physics.