Lehigh的许多物理研究领域都涉及使用最先进的计算机来解决大规模计算问题。物理学系的研究人员采用多种计算方法来建模凝聚态和量子系统中的复杂多体系统，大型天文测量中的可变信号检测，具有分子动力学的生物系统的粗粒度模型，统计方法和连续方法，高能和核物理领域的大规模数据分析。基于强化学习的原子力显微镜的发展。计算研究是在校园和国家机构的高性能计算设施中进行的。博士学位课程包括一系列核心课程，其中包括一些高级研究生课程，这些课程提供了从长远来看非常重要的物理学广泛背景，与学生研究领域相关的专门课程以及针对该学科
Many of the fields of physics research at Lehigh involve the use of state-of-the-art computers to address large-scale computational problems. Researchers in the physics department employ diverse computational approaches to model complex many-body systems in condensed matter and quantum systems, the detection of variable signals in large astronomical surveys, coarse-grained models of biological systems with molecular dynamics, statistical, and continuum methods, large-scale data analysis in high energy and nuclear physics. Development of reinforcement-learning-based atomic force microscopy. The computational research is performed at both high performance computing facilities on campus and in national facilities. The Ph D program includes a set of core courses, including some at the advanced graduate level that provide the broad background in physics that is so important in the long run, specialized courses relevant to the research area of the student, and the research for the Ph D dissertation. Students entering with graduate level work at other institutions may include relevant courses taken at the other institutions in their proposal for candidacy, which includes all their course preparation as well as the research proposal for the dissertation. The Department of Physics at Lehigh University offers programs leading to the B.A. in astronomy, the B.S. in astrophysics, and to the B.A., B.S., M.S., and Ph.D. degrees in physics, as well as a summer research program for undergraduates. Research areas include astronomy and astrophysics, atomic, molecular, and optical physics, biophysics, computational physics, condensed-matter physics, general relativity, cosmology, and string theory, high-energy and accelerator physics, nano science, non-linear optics and photonics, plasma physics, soft-condensed matter and complex fluids, and statistical physics.