| | |  | | | | Record from Web of Science® | | | | | | |
| Proposed test of Bell's inequality without a detection loophole by using entangled Rydberg atoms |
|
|
| Author(s): Freyberger M, Aravind PK, Horne MA, Shimony A |
| Source: PHYSICAL REVIEW A Volume: 53 Issue: 3 Pages: 1232-1244 Published: MAR 1996 |
| Times Cited: 34 References: 36 |
| Abstract: The tests of Bell's inequality to date have failed to be definitive because of the ''detection loophole,'' due to the inefficiency of photodetectors. An idealized experiment using pairs of two-level Rydberg atoms, correlated with the help of a quantized cavity field, was proposed by Oliver and Stroud [J. Opt, Sec. Am. B 4, 1426 (1987)] for the purpose of blocking this loophole. We develop their proposal by removing their idealizations. We carefully define the ensemble of atom pairs by imposing conditions on arrival times at the analyzers of the atoms. We take into account the spread of velocities of the atoms, which implies that the ensemble must be described quantum mechanically by a statistical operator rather than a pure state, and we show that with detector efficiencies of 0.9 or better, quantum mechanics implies a strong violation of Bell's inequality in the ensemble. Upper and lower bounds on ensemble averages can be inferred from experimental averages, thereby permitting an experimental test of Bell's inequality in the ensemble. |
| Document Type: Article |
| Language: English |
| Reprint Address: Freyberger, M (reprint author), UNIV ULM, ABT QUANTENPHYS, D-89069 ULM, GERMANY |
Addresses:
1. WORCESTER POLYTECH INST, DEPT PHYS, WORCESTER, MA 01609 USA
2. STONEHILL COLL, DEPT PHYS, N EASTON, MA 02357 USA
3. BOSTON UNIV, DEPT PHILOSOPHY, BOSTON, MA 02215 USA
4. BOSTON UNIV, DEPT PHYS, BOSTON, MA 02215 USA |
| Publisher: AMERICAN PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
| Subject Category: Optics; Physics, Atomic, Molecular & Chemical |
| IDS Number: TY087 |
| ISSN: 1050-2947 |
|
| | | | | | | | | Record from Web of Science® | | | | | | | | | |