Quantum Engineering Group (QEG)

The Quantum Engineering Group (QEG) studies quantum dynamics and control in spin systems, with applications in quantum information and precision measurement. We develop novel experimental and theoretical techniques for robust quantum control, investigate methods for ultra-sensitive quantum metrology with single spin sensors, and design building blocks and communication protocols for quantum information processing in distributed architectures.

The development of new technologies at scales approaching the quantum regime is driving new theoretical and experimental research on control in quantum systems. The implementation of quantum control would have an enormous impact on a wide range of fields such as chemistry, nuclear magnetic resonance, microelectronics, and precision metrology. Quantum control finds an ideal application in quantum information processing (QIP), which promises to radically improve the acquisition, transmission, and processing of information. To reach this goal it is necessary to improve both the experimental techniques and the coherent control theory of quantum bits (qubits), as well as to gain a deeper knowledge of the mechanisms of decoherence, which must be studied and fought against. The main topics of my research have been methods of control of physical systems candidates as qubits. In the future, we will investigate strategies for the control of quantum systems that can deliver QIP devices (not only quantum computers but also simulators, measuring and communication devices, etc.), which exceed the capacities of the corresponding classical devices.

The Quantum Engineering Group is part of the Research Lab of Electronics (RLE), the Center for Ultracold Atoms (CUA), the Interdisciplinary Quantum Information Science and Engineering (iQuISE) Program and the Center for Extreme Quantum Information Theory (xQIT).