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When scaling the quantum slopes, veer for the straight path
Date:10/24/2013

n 2013 and is working in the laboratory of Herschel Rabitz, Princeton's Charles Phelps Smyth '16 *17 Professor of Chemistry.

"We found that not only can you always climb to the top, but you can climb along a simple path to the top," Nanduri said. "If we could consistently identify where these paths are located, a scientist could efficiently climb the landscape. Looking around for the next good step along an unknown path takes great effort. However, starting along a straight path requires you to look around once, and you can keep walking forward with your eyes closed, as it were."

Following a straighter path could be a far more efficient way of achieving control of atoms and molecules for a host of applications, including manipulating chemical reactions and operating quantum computers, Nanduri said. The source of much scientific excitement, quantum computers would use "qubits" that can be entangled to potentially give them enormous storage and computational capacities far beyond the capabilities of today's digital computers.

If the Princeton research helps scientists quickly and easily find the control fields they need, it could also allow them to carry out improved measurements of quantum systems and design new ones, Nanduri said.

"We don't know if our discovery will directly lead to futuristic quantum devices, but this finding should spur renewed research," Nanduri said. "If straight paths to good quantum control solutions can be routinely found, it would be remarkable."


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Contact: Morgan Kelly
mgnkelly@princeton.edu
609-258-5729
Princeton University
Source:Eurekalert  

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