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Lomanitz

Ross Lomanitz (1921–2003) was an American physicist.

He was born in Oklahoma and grew up in Bryan, Texas. He graduated from high school at age 14. Lomanitz went on to earn his bachelor of science degree in physics from the University of Oklahoma and his doctorate in theoretical physics from Cornell University. He was the first graduate student of Richard Feynman.

He attended to graduate school in the early 1940s at the University of California, Berkeley. While there, he became a protégé of the physicist J. Robert Oppenheimer. Lomanitz worked with Oppenheimer on a new method of electromagnetic separation of isotopes. Lomanitz graduate research was cut short by service in the Army during World War II.

During the period 1942-45 Oppenheimer was responsible for the employment on the atomic bomb project of Lomanitz. Oppenheimer urged him to work on the Manhattan Project, although Oppenheimer had stated he knew Lomanitz had been very much of a "Red" when he first came to the University of California. Oppenheimer emphasized to him that he must forego all political activity if he came on to the project. In August 1943, Oppenheimer protested against the termination of his military deferment and requested that he be returned to the project after his entry into the military service.

While at the Radiation Laboratory, Lomanitz was active in attempts to establish a local of the Federation of Architects, Engineers, Chemists, and Technicians (FAECT), a small white-collar CIO union.

The Federal Bureau of Investigation had illegaly^{[citation needed]} placed listening devices in Steve Nelson's residence, and in October 1942 overhead Lomanitz closest friend Joe Weinberg describing to Nelson the significance and technical outlines of the secret nuclear research done in Berkeley. Future spying for the Soviet Union was implied. In a fallout with Weinberg, Lomanitz and David Bohm were pushed out of the program and Lomanitz draft deferment was reversed.

After the war Lomanitz was called to testify before the House Un-American Activities Committee. He adamantly asserted his loyalty to the United States and invoked the Fifth Amendment, and declined to name others in involved with Communist activities.

The Atomic Energy Commission Personnel Security Board (PSB) concluded in 1954 that Oppenheimer stated in 1943 he did not want anybody working on the project who was a member of the Communist Party, since "one always had a question of divided loyalty" and the discipline of the Communist Party was very severe and not compatible with complete loyalty to the project. Oppenheimer, however, did not identify former members of the Communist Party who were working on the project to appropriate authorities.

Lomanitz then worked at several jobs, including as a railroad maintenance worker.

In 1962 he began working at the New Mexico Institute of Mining and Technology and later became department chairman, before retiring in 1991 due to cancer.

• Findings and Recommendations of the Personnel Security Board in the Matter of Dr. J. Robert Oppenheimer
• “Report on Atomic Espionage (Nelson-Weinberg and Hiskey-Adams Cases),” 29 September 1949, U.S. Congress, House of Representatives, Committee on Un-American Activities, 89th Cong., 1st sess., 1–15.
• San Francisco FBI report of 1 July 1945 through 15 March 1947, Comintern Apparatus file, serial 5421.
• Oral transcription of interview between Lt. Col. John Landsdale, Jr., and Dr. J. Robert Oppenheimer, 12 September 1943