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Digital quantum simulator realized



 
 
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Old September 6th 11, 01:07 AM posted to rec.sport.cricket,talk.politics.misc,sci.med,sci.astro
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Default Digital quantum simulator realized

http://www.kurzweilai.net/digital-qu...m_medium=email
Digital quantum simulator realized
September 2, 2011 by Editor

University of Innsbruck physicists have created a digital quantum simulator that can
potentially be programmed to simulate any physical system efficiently.
They used a digital approach to quantum simulation in a system of trapped ions. They
encoded the desired initial state of the system in qubits and then implemented the
operation sets by laser pulses. They then demonstrated this method in two experiments,
using up to 100 gates and 6 qubits.

The physicists said they were able to simulate interactions and dynamics not even present
in the quantum computer. They simulated the full-time dynamics of a range of spin systems.
Interactions beyond those naturally present in the simulator were accurately reproduced,
and quantitative bounds were provided for the overall simulation quality.

They demonstrated the key principles of digital quantum simulation and provided evidence
that the level of control required for a full-scale quantum device is within reach, the
physicists said.

Ref.: B. P. Lanyon, et al., Universal digital quantum simulation with trapped ions,
Science Express, 2011; [DOI: 10.1126/science.1208001]



 




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