University of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada N2L 3G1

Phone: (519) 888-4567 ext 32215

Fax: (519) 746-8115

Associate Professor

Dr. Lupascu is an experimental physicist interested in the quantum dynamics of various types of physical systems and the application of quantum effects to build new types of detectors and quantum information processors. His Superconducting Quantum Device lab focuses on experimental research with superconducting devices, ranging from quantum bits for quantum information experiments, to superconducting resonators for loss characterization, among other projects.

**Contact information**

Office: QNC 2202; RAC1 2112

Phone: 519 888-4567 ext. 35468

Email: alupascu@uwaterloo.ca

Website: Superconducting Quantum Devices Group

- Quantum computing with superconducting quantum circuits
- Decoherence in superconducting devices
- Quantum sensing
- Quantum optics with superconducting circuits
- Hybrid systems for quantum information processing

Dr. Lupascu and his research group investigate quantum effects in solid state devices. The physical systems we are primarily interested in consist of nanostrucutured superconductors with Josephson junctions. With proper design and experimental control, these systems behave as artificial atoms. We are interested in using superconducting quantum devices as quantum bits (or qubits), which are the basic units of quantum information processors. In addition, we use the strong interaction between superconducting devices and eletromagnetic fields to explore new phenomena in quantum optics and quantum measurement with applications to amplification and sensing.

Current projects include

- Quantum Computing with Superconducting Devices
- Microwave dielectric loss in amorphous solids at low temperatures
- Microwave photons in superconducting circuits
- Quantum sensors based on superconducting devices
- Hybrid superconductor / semiconductor devices

- PHYS 461, Nanophysics
- PHYS 731, Solid State Physics
- PHYS 768, Topics in Quantum Info Process
- PHYS 773 - Nanoelectronics for Quantum Computing

*Flux qubits in a planar circuit quantum electrodynamics architecture: quantum control and decoherence*,

J.-L. Orgiazzi, C. Deng, D. Layden, R. Marchildon, F. Kitapli, F. Shen, M. Bal,

F. R. Ong, A. Lupascu,

Physical Review B **93**, 104518 (2016), Arxiv

*Observation of Floquet states in a strongly driven artificial atom*,

Chunqing Deng, Jean-Luc Orgiazzi, Feiruo Shen, Sahel Ashhab, Adrian Lupascu,

Physical Review Letters **115**, 133601 (2015), Arxiv.

*Suspended graphene devices with local gate control on an insulating substrate*,

F. R. Ong, Z. Cui, M. A. Yurtalan, C. Vojvodin, M. Papaj, J.-L. F. X. Orgiazzi, C. Deng, M. Bal, A. Lupascu,*Nanotechnology* **26** 405201 (2015), Arxiv.

*Dynamics of parametric fluctuations induced by quasiparticle tunneling in superconducting flux qubits*,

M. Bal, M. H. Ansari, J.-L. Orgiazzi, R. M. Lutchyn, and A. Lupascu,

Physical Review B **91**, 195434 (2015), Arxiv.

*Quantum physics: The path most travelled*,

A. Lupascu,

Nature, News and Views **511**, 538 (2014), Arxiv.

Please see Dr. Lupascu's research site for a complete list of his publications.

- 2011, Early Researcher Award, Ontario Ministry of Research and Innovation
- 2011, Research Fellow, Alfred P. Sloan Foundation
- 2007, Marie Curie Fellowship

- Faculty, Institute for Quantum Computing
- Member, Waterloo Institute for Nanotechnology
- Cross appointed faculty, Department of Electrical and Computer Engineering

2005 PhD Physics, Delft University of Technology, The Netherlands

2000 BSc Physics, University of Bucharest, Romania

Affiliation:

University of Waterloo

University of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada N2L 3G1

Phone: (519) 888-4567 ext 32215

Fax: (519) 746-8115

University of Waterloo

University of Waterloo

43.471468

-80.544205

200 University Avenue West

Waterloo,
ON,
Canada
N2L 3G1