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Principal Project Specialist at the Argonne National Laboratory and a Senior Scientist in Department of Computer Science at University of Chicago Consortium for Advanced Science and Engineering. He is a senior member of IEEE society and a member of Chicago Quantum Exchange. His research involves development of quantum computing algorithms, error correction/mitigation techniques, and numerical simulator of quantum systems using high-performance computing on next-generation high-performance supercomputers. The recent projects include development of quantum chemistry and combinatorial optimization quantum algorithms for NISQ quantum computers.
Dr. Alexeev received his PhD in Physical Chemistry from Iowa State University while a graduate student in Mark Gordon’s quantum chemistry group. After graduation, Dr. Alexeev became a postdoctoral fellow at Pacific Northwest National Laboratory and worked in the NWChem group led by Dr. Theresa Windus; later, he joined the Nobel Prize winner Dr. Martin Karplus’ group at Harvard University and Université de Strasbourg.
- Quantum Algorithms
- Quantum Chemistry Algorithms
- Quantum Combinatorial Optimization Algorithms
- Classical and Quantum Machine Learning
- Quantum Simulators
- High Performance Computing and Parallel Computing
Salman Habib is the Director of Argonne’s Computational Science (CPS) Division and an Argonne Distinguished Fellow. He holds a joint position in Argonne’s Physical Sciences and Engineering (PSE) Directorate, and has joint appointments at the University of Chicago and Northwestern University. Habib’s interests cover a broad span of research, ranging from quantum field theory and quantum information to the formation and evolution of cosmological structures.
Habib has been deeply involved in the application of large-scale supercomputing to attacking problems in the physical sciences, including beam dynamics in accelerators, nonequilibrium quantum and classical field theory, quantum dynamical systems, and the formation of cosmic structure. This has led to algorithm and code development on a variety of platforms, beginning with the Connection Machines in the early 1990′s and leading on to the exascale systems, Aurora and Frontier, soon to be installed at Argonne and Oak Ridge. Over the last two decades, he has led efforts — with cosmology as the primary arena — to apply advanced statistical methods to complex inference problems with very large datasets, using supercomputer-based forward model predictions. Habib leads the ExaSky effort within DOE’s Exascale Computing Project (ECP), and is a member of the cosmological surveys, Cosmic Microwave Background – Stage IV (CMB-S4), Dark Energy Survey Instrument (DESI), the Legacy Survey of Space and Time (LSST), and the NASA mission SPHEREx.
Habib received his Ph.D. from the University of Maryland in physics after carrying out his undergraduate work at the Indian Institute of Technology, Delhi, India. Following his PhD, he was a postdoctoral fellow at the University of British Columbia, and later, a postdoc and staff member in the Theoretical Division at Los Alamos National Laboratory, before moving to Argonne in 2011.
Martin Suchara is a computational scientist at Argonne National Laboratory with expertise in quantum computing. His research focuses on quantum communication and networking, quantum error correction, quantum simulations, and optimizations of the quantum computing software stack.
Prior to joining Argonne, Martin worked at AT&T Labs and received postdoctoral training in quantum computing from UC Berkeley and the IBM T. J. Watson Research Center. Martin received his Ph.D. from the Department of Computer Science at Princeton University.
- Superconductivity, superfluidity, Bose-Einstein condensation
- Single-electron and single-photon quantum devices
- Quantum and topological photonics, plasmonics, and excitonics
- Low-phonon-limit nanomechanical systems, optomechanics
- Electron transport measurement
- Microwave weak-signal measurement
- Nano-fabrication and characterization
- Cryogenic system design and operation
- Scanning near-field optical microscopy
- Electron energy-loss spectroscopy
- Picosecond pump-probe measurement
- Micro-Raman and fluorescence measurement
- Real-time density-functional calculation
- Electrodynamic and cavity QED calculation
Research focuses on experimental study of hybrid quantum systems involving magnon spintronics, integrated photonics, and nanomechanics, aiming at developing high-fidelity quantum transducers for distributed quantum networks. Such interdisciplinary research not only studies the quantum coherent phenomena of individual quantum information carriers but also seeks enhancement of their coherent interactions. Research interests also include developing integrated photonic sensors for biochemical sensing with high sensitivity and specificity, as well as wireless sensor networks in extreme conditions such as in subterranean environments.
Jeffrey Guest explores electronic, magnetic, optical properties of matter on nanometer length scales using ultrahigh vacuum scanning probe microscopy and ‘single particle’ laser spectroscopy techniques. He also studies and develops new ways of measuring and controlling mechanical motion of nanofabricated and self-assembled nanoscale systems.
In his current experimental work at the CNM, he is interested in understanding and controlling the electronic, magnetic, optical and quantum coherence properties of molecular and nanoscale systems. These properties are largely determined by structure and environment at the atomic scale. In order to control and characterize these nanoscale systems at these length scales, he is combining low temperature ultra-high-vacuum scanning probe microscopy (LT UHV SPM) and confocal optical microscopy and spectroscopy to explore single atoms or molecules, self-assembled molecular heterojunctions, photocatalytic surfaces, and quantum defects in 2D materials. He is particularly interested in (i) photophysics of molecular acceptor-donor complexes and defected surfaces, (ii) nanoplasmonics and tip-enhanced laser spectroscopies, and (iii) the limits of electronic, spin, and optical quantum coherence in nanoscale systems at surfaces.
Jeffrey has also been developing new approaches to measuring and controlling nanomechanical motion in nanofabricated and self-assembled systems. Using interferometric laser microscopy techniques, he has studied mechanical dynamics of membranes self-assembled from functional nanoparticles and nonlinear dynamics in nanofabricated structures. He is also developing new techniques to drive and measure the high frequency vibrations of the nanoparticles themselves. These approaches may open new doors to coupling the intrinsic functionality of nanoparticles and nanoscale systems to mechanical motion, providing new opportunities in sensing and control.