Journal
PHYSICAL REVIEW LETTERS
Volume 106, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.080405
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Funding
- GIF
- DFG Center for Functional Nanostructures
- Einstein Minerva Center
- U.S.-Israel BSF
- ISF
- Minerva Foundation
- Israel-Korea MOST
- EU GEOMDISS
- Israel MOIA
- Alexander von Humboldt Foundation
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A protocol employing weak values (WVs) to obtain ultrasensitive amplification of weak signals in the context of a solid-state setup is proposed. We consider an Aharonov-Bohm interferometer where both the orbital and the spin degrees of freedom are weakly affected by the presence of an external charge to be detected. The interplay between the spin and the orbital WVs leads to a significant amplification even in the presence of finite temperature, voltage, and external noise.
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