U.S.-Czechoslovakia Theoretical Physics Research on Higher- Order Squeezing and Interferometry

纽约城市大学亨特学院的马克·希勒里博士和斯洛伐克科学院物理研究所的弗拉基米尔·布泽克博士共同开展的这项美国-捷克斯洛伐克研究项目，将研究压缩自旋态的基本理论在干涉相位测量中的应用。具体来说，研究人员将研究量子光学系统中涉及变量的二次压缩，这些变量在模式创建和湮灭算子中是二次的。Drs。Hillery和Buzek认为，这些变量可以使用分束器和参数放大器或四波混频器的组合来观察。他们打算使用这些变量作为量子光学系统或场物质系统的探针，以确定更准确和实用的测量方案。这个理论物理领域的联合研究项目通过使美国和东欧的顶尖专家在共同感兴趣的领域结合互补的人才和汇集资源，实现了推进科学知识的计划目标能力。

This US-Czechoslovakia research project between Dr. Mark Hillery of Hunter College, City University of New York, and Dr. Vladimir Buzek of the Institute of Physics, Slovak Academy of Sciences, will pursue application of the basic theory of squeezed spin states to interferometric phase measurements. Specifically, the researchers will examine quadratic squeezing involving variables in quantum optical systems which are quadratic in the mode creation and annihilation operators. Drs. Hillery and Buzek maintain that these variables can be observed using combinations of beam splitters and parametric amplifiers or four-wave mixers. They intend to use these variables as probes of quantum optical systems or field-matter systems to determine more accurate and practical measurement schemes. This joint research project in theoretical physics fulfills the program objective of advancing scientific knowledge by enabling leading experts in the United States and Eastern Europe to combine complementary talents and pool resources in areas of strong mutual interest and competence.