Dear all,

As part of the CN1-SPOKE 10 on Quantum Computing, we are organizing a
weekly seminar series.

Next week’s seminar is:

Title: Dynamic Cooling of Qubits on Contemporary Quantum Computers
Speaker: Lindsay Bassman Oftelie (NEST-CNR)
Venue: Sala Polifunzionale, Ed. C, Polo Fibonacci (Dip. Informatica)
Time: Monday, 22/04/2024, 14:00

Abstract: Quantum computers require qubits to be initialized in a
pure (i.e., cold) state for successful computation. Dynamic cooling
offers a route to effectively lower qubit temperatures beyond what is
possible with direct, physical cooling techniques.  It works by
cooling a subset of qubits, at the expense of heating others, by
applying certain logic gates to the entire system.  While it was
initially dismissed as impractical for the high-temperature NMR-based
quantum computers available at the time of its inception, we show how
dynamic cooling is substantially more effective and efficient on the
low-temperature quantum computers available today.  In this talk, we
will examine how optimal dynamic cooling scales with total system
size, in terms of the minimal achievable final temperature, the work
cost, and the complexity of the associated quantum circuits.  We will
observe the effect of hardware noise on cooling and we will propose a
sub-optimal dynamic cooling scheme with fixed (low) complexity to
improve the feasibility of implementation on noisy quantum hardware.


Everyone is welcome!

Please, note the change of venue and time.
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Gianna M. Del Corso, PhD
Dipartimento di Informatica, 
Università di Pisa
Largo Pontecorvo, 3 56127 Pisa, Italy 
ph. +39-050-2213118     
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