The University of Maryland at College Park is accepting applications to fill two experimental positions pertaining to cryogenic computing. This research will be conducted at the Laboratory for Physical Sciences (LPS) in College Park, MD. LPS is a unique facility, located adjacent to the University of Maryland's College Park campus, where university and federal government personnel collaborate on research in the physical sciences. LPS hosts many cryogenic research laboratories for quantum computing and other solid-state research, and includes on-site cleanroom and nanofabrication facilities.
LPS has a long tradition of conducting research in quantum computing and these opportunities lie within a newly established effort at LPS: the cryogenic logic group. This new group expands upon capabilities of both the quantum computing group and the high-speed optical communications group within LPS. The broad goals of this new group are to: 1) develop and test low power devices at 4 Kelvin which will map digital single flux quanta data from a superconducting processor onto an optical data link and to 2) demonstrate reversible digital logic gates for future computing.
For the first research position, the cryogenic logic group is seeking to develop calorimetric techniques to measure the dissipated power and leaked optical power from the electrical to optical (EO) device. The associate will work closely with the cryogenic logic group to perform such measurements by creating a controlled weak thermal link to the device from 4 K and accurately measure the temperature on which the device is mounted too. The applicant will also assist the group in testing the maximum data and bit-error rates of the EO device, as well as other metrics. This position is being established in response to IARPA’s SuperCables program, which is a program specifically targeting the egress of high-speed data from a superconducting processor.
The second research position will allow a postdoctoral researcher to conduct experimental studies on reversibly efficient logic which will offer dramatic energy savings compared to conventional CMOS and superconducting logic which use irreversible logic gates. The experimentalist will design new circuits that test newly established theory on reversible fluxon logic gates (arXiv:1711.04339, arXiv:1806.08011). These studies may include how quantum fluctuations affect classical reversible logic gates. Quantum-sensitive measurements of ballistic fluxons and gates will be conducted to see how well specific fluxon to antifluxon state changes can be realized.
The University of Maryland is an Affirmative Action/Equal Opportunity employer and particularly welcomes applications from women and members of minority groups.
Skills and experience sought for the calorimetric position include: 1) An advanced degree in applied physics, engineering, or physics 2) Excellent communication (e.g. speaking and writing) skills 3) Extensive experience and knowledge working with either liquid He or closed cycle refrigerators 4) Data acquisition, automation, and analysis software and 5) Simulation and modeling of systems using finite element software. Interested candidates are invited to seek more information or submit an electronic application addressed to email@example.com with the subject line “Calorimetry”. The application should include a CV and the contact details of two references.
Skills and experience sought for reversible cryogenic logic position include: 1) a Ph.D. in physics or equivalent, 2) superconducting device design and fabrication experience, 3) low-noise and RF measurement experience, and 4) data acquisition and analysis, and 5) scientific writing. Interested candidates are invited to seek more information or submit an electronic application addressed to Dr. Kevin Osborn with subject line: “Reversible Logic” to firstname.lastname@example.org.
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