Mercury dimer spectroscopy and an Einstein-Podolsky-Rosen experiment

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Title: Mercury dimer spectroscopy and an Einstein-Podolsky-Rosen experiment
Author: Qu, Xinmei
Abstract: The dissociation of a 199Hg2 dimer prepares an entangled state of two spatially separated 199Hg atoms , each with nuclear spin 1 /2 , and with zero total electron and nuclear spin angular momenta . This is identical to the entangled state of the two spin 1 /2 particles in Bohm ?s classic version of the EPR gedankenexperiment . An analysis of the rotational structure of the CD=57HCI=0 band of the D3K+ u (1u )HX1Kg + (0+ g ) transition in Hg2 (natural abundance ) is presented . The analysis of the fluorescence excitation spectrum using a dye laser gives the values of the constants BCD=57 and BCI=0 for the excited and ground electronic energy states involved in the transition , respectively . To increase the accuracy of the rotational constants and resolve the fine spectrum of the Hg2 , a continuously tunable single longitudinal mode laser with ultra -narrow line -width is needed . Measurements using a narrow line -width alexandrite laser had been attempted and the values of BCD=57 and BCI=0 were determined . To improve the quality of the laser beam and hence the precision of the rotational constants , modifications have been made to the cavity of the alexandrite laser . This provides a possibility for further investigation .
URI: http : / /hdl .handle .net /1969 .1 /ETD -TAMU -3041
Date: 2009-05-15

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Mercury dimer spectroscopy and an Einstein-Podolsky-Rosen experiment. Available electronically from http : / /hdl .handle .net /1969 .1 /ETD -TAMU -3041 .

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