MIT Quantum Information Processing seminar
Monday 11/24 at 4:15 in 36-428
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Verstraete,Frank ()
The complexity of simulating quantum many-body systems
Abstract:
The theory of entanglement and of quantum computational complexity is providing valuable new insights into the problem of simulating strongly correlated quantum many-body systems. We will discuss recent progress in that field.
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http://qis.mit.edu
MIT Quantum Information Processing seminar
Monday 11/17 at 4:15 in 36-428
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Aliferis,Panos (IBM)
Fault-tolerant quantum computing against highly biased noise
Abstract:
Experimentalists in quantum computing observe that in many of their systems
noise is biased—i.e., loss of phase coherence in the computational basis occurs
faster than relaxation to the lowest energy eigenstate or leakage outside the
computational subspace. I will discuss a scheme for fault-tolerant quantum computation
that is especially designed to protect against biased noise. The scheme is
particularly effective when the noise bias is very high, with dephasing dominating
other types of noise by three orders of magnitude or more. To illustrate how this
scheme could be relevant for future experiments, I will discuss the design of a
universal set of biased-noise operations for the superconducting flux qubit
investigated at the IBM labs.
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http://qis.mit.edu
