Proposal for the measurement of bell-type correlations from continuous variables
نویسندگان
چکیده
We show theoretically that Bell-type correlations can be observed between continuous variable measurements performed on a parametric source. An auxiliary measurement, performed on the detection environment, negates the possibility of constructing a local realistic description of these correlations.
منابع مشابه
2 00 1 Reply to Comment on “ Proposal for the Measurement of Bell - Type Correlations from Continuous Variables ”
Recently K. Banaszek, I. A. Walmsley, K. Wodkiewicz (quant-ph/0012097) commented on our Proposal for the Measurement of Bell-Type Correlations from Continuous Variables [T. Their comment is based on a blatant misreading and misunderstanding of our letter and as such is simply wrong.1] on our letter [2] purports to present a hidden variable theory which describes our results. The hidden variable...
متن کاملProposal for a cumulant-based Bell test for mesoscopic junctions
The creation and detection of entanglement in solid state electronics is of fundamental importance for quantum information processing. We prove that second-order quantum correlations can be always interpreted classically and propose a general test of entanglement based on the violation of a classically derived inequality for continuous variables by fourth-order quantum correlation functions. Ou...
متن کاملPhysical Review Letters
Entanglement is a defining feature of quantum mechanical systems and leads to correlations between subsystems of a very nonclassical nature. These in turn lead to fundamentally new interactions and applications in the field of quantum information [1]. The strange nature of entanglement was first pointed out by Einstein, Podolsky, and Rosen (EPR) [2] for the continuous variables of position and ...
متن کاملSuggestion of New Correlations for Drop/Interface Coalescence Phenomena in the Absence and Presence of Single Surfactant
After designing and constructing a coalescence cell, drop/interface coalescence phenomenon was studied in the absence and presence of single surfactant.Two surface active agents of sodium dodecyl sulfate and 1-decanol were used. Distilled water was used as dispersed phase. Toluene, n-heptane and aqueous 60% (v/v) of glycerol were selected as continuous phases, separately. It was found that ...
متن کاملQuantum cryptography with a predetermined key, using continuous variable Einstein-Podolsky-Rosen correlations
Correlations of the type discussed by EPR in their original 1935 paradox for continuous variables exist for the quadrature phase amplitudes of two spatially separated fields. These correlations were experimentally reported in 1992. We propose to use such EPR beams in quantum cryptography, to transmit with high efficiency messages in such a way that the receiver and sender may later determine wh...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review letters
دوره 85 10 شماره
صفحات -
تاریخ انتشار 2000