Michel Baranger

Michel Jacques Louis Baranger, a remarkable Franco-American theoretical physicist, left an indelible mark on the world of physics. Born on July 31, 1927, in Le Mans, France, he embarked on a remarkable journey that spanned continents and decades, making significant contributions to the field of theoretical physics.

Baranger’s academic journey commenced at the École normale supérieure in Paris, where he matriculated in 1945. He graduated in 1949, equipped with a strong foundation in physics that would serve as the bedrock of his illustrious career. His pursuit of knowledge led him to Cornell University, where, in 1951, he earned his Ph.D. under the tutelage of the renowned physicist Hans Bethe. His dissertation, titled “Relativistic Corrections to the Lamb Shift,” showcased his early dedication to pushing the boundaries of theoretical physics.

During his academic journey, Baranger had the privilege of working with some of the brightest minds in physics, including Richard Feynman. This collaboration with Feynman at Caltech from 1953 to 1955 further enriched his understanding of the field and laid the groundwork for his future contributions.

In 1955, Baranger joined the physics department of the Carnegie Institute of Technology, where he quickly rose through the ranks, becoming an assistant professor in 1956 and a full professor in 1964. His profound insights and dedication to the field earned him a reputation as a leading figure in theoretical physics.

In 1969, Baranger continued his academic journey at the Massachusetts Institute of Technology (MIT), where he would spend nearly three decades, retiring as a professor emeritus in 1997. His time at MIT was marked by groundbreaking research in areas such as plasma spectroscopy, nuclear collective motion, semi-classical quantum chaos, and speciation as a complex system.

Throughout his career, Baranger’s work made a significant impact, and his contributions to the scientific community were recognized when he was elected a Fellow of the American Physical Society in 1968. He was also the main connection for George Stranahan and Michel Cohen in the founding of the Aspen Center for Physics. Baranger was appointed a Trustee for ACP from 1968-1974.

Beyond his scientific achievements, Michel Baranger was known for his modesty, warmth, and collaborative spirit. He was a dedicated teacher and mentor, inspiring countless students and colleagues with his passion for physics. Baranger passed away on October 1, 2014.