| Title: |
Quantum Imaging by Coherent Enhancement |
| Authors: |
Low, Guang Hao; Yoder, Theodore James; Chuang, Isaac L. |
| Contributors: |
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Research Laboratory of Electronics; MIT-Harvard Center for Ultracold Atoms; Low, Guang Hao; Yoder, Theodore James; Chuang, Isaac L. |
| Source: |
American Physical Society |
| Publisher Information: |
American Physical Society |
| Publication Year: |
2015 |
| Description: |
Conventional wisdom dictates that to image the position of fluorescent atoms or molecules, one should stimulate as much emission and collect as many photons as possible. That is, in this classical case, it has always been assumed that the coherence time of the system should be made short, and that the statistical scaling ∼1/sqrt[t] defines the resolution limit for imaging time t. However, here we show in contrast that given the same resources, a long coherence time permits a higher resolution image. In this quantum regime, we give a procedure for determining the position of a single two-level system and demonstrate that the standard errors of our position estimates scale at the Heisenberg limit as ∼1/t, a quadratic, and notably optimal, improvement over the classical case. ; MIT-Harvard Center for Ultracold Atoms MIT International Science and Technology Initiative ; National Science Foundation (U.S.). Integrative Graduate Education and Research Traineeship ; United States. Army Research Laboratory (Quantum Algorithms Program) |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
http://hdl.handle.net/1721.1/95994 |
| Availability: |
http://hdl.handle.net/1721.1/95994 |
| Rights: |
undefined |
| Accession Number: |
edsbas.C409E8FB |
| Database: |
BASE |