Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Lecocq, F"'
Autor:
Malnou, M., Miller, B. T., Estrada, J. A., Genter, K., Cicak, K., Teufel, J. D., Aumentado, J., Lecocq, F.
High-fidelity qubit measurement is a critical element of all quantum computing architectures. In superconducting systems, qubits are typically measured by probing a readout resonator with a weak microwave tone which must be amplified before reaching
Externí odkaz:
http://arxiv.org/abs/2406.19476
Parametric amplifiers have become a workhorse in superconducting quantum computing, however research and development of these devices has been hampered by inconsistent, and sometimes misleading noise performance characterization methodologies. The co
Externí odkaz:
http://arxiv.org/abs/2312.14900
Autor:
Jin, X. Y., Cicak, K., Parrott, Z., Kotler, S., Lecocq, F., Teufel, J., Aumentado, J., Kapit, E., Simmonds, R. W.
Future quantum information processors require tunable coupling architectures that can produce high fidelity logical gates between two or more qubits. Parametric coupling is a powerful technique for generating tunable interactions between many qubits.
Externí odkaz:
http://arxiv.org/abs/2305.02907
Autor:
Lecocq, F., Ranzani, L., Peterson, G. A., Cicak, K., Jin, X. Y., Simmonds, R. W., Teufel, J. D., Aumentado, J.
Publikováno v:
Phys. Rev. Lett. 126, 020502 (2021)
The act of observing a quantum object fundamentally perturbs its state, resulting in a random walk toward an eigenstate of the measurement operator. Ideally, the measurement is responsible for all dephasing of the quantum state. In practice, imperfec
Externí odkaz:
http://arxiv.org/abs/2009.08863
Publikováno v:
Nature 591, 575-579 (2021)
Delivering on the revolutionary promise of a universal quantum computer will require processors with millions of quantum bits (qubits). In superconducting quantum processors, each qubit is individually addressed with microwave signal lines that conne
Externí odkaz:
http://arxiv.org/abs/2009.01167
Autor:
Lecocq, F., Ranzani, L., Peterson, G. A., Cicak, K., Metelmann, A., Kotler, S., Simmonds, R. W., Teufel, J. D., Aumentado, J.
Publikováno v:
Phys. Rev. Applied 13, 044005 (2020)
The measurement of a quantum system is often performed by encoding its state in a single observable of a light field. The measurement efficiency of this observable can be reduced by loss or excess noise on the way to the detector. Even a \textit{quan
Externí odkaz:
http://arxiv.org/abs/1909.12964
Autor:
Peterson, G. A., Kotler, S., Lecocq, F., Cicak, K., Jin, X. Y., Simmonds, R. W., Aumentado, J., Teufel, J. D.
Publikováno v:
Phys. Rev. Lett. 123, 247701 (2019)
We present a new optomechanical device where the motion of a micromechanical membrane couples to a microwave resonance of a three-dimensional superconducting cavity. With this architecture, we realize ultrastrong parametric coupling, where the coupli
Externí odkaz:
http://arxiv.org/abs/1906.11353
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Publikováno v:
Phys. Rev. X 7, 031001 (2017)
The ability to engineer nonreciprocal interactions is an essential tool in modern communication technology as well as a powerful resource for building quantum networks. Aside from large reverse isolation, a nonreciprocal device suitable for applicati
Externí odkaz:
http://arxiv.org/abs/1703.05269
Autor:
Lecocq, F., Ranzani, L., Peterson, G. A., Cicak, K., Simmonds, R. W., Teufel, J. D., Aumentado, J.
Publikováno v:
Phys. Rev. Applied 7, 024028 (2017)
We report on the design and implementation of a Field Programmable Josephson Amplifier (FPJA) - a compact and lossless superconducting circuit that can be programmed \textit{in situ} by a set of microwave drives to perform reciprocal and nonreciproca
Externí odkaz:
http://arxiv.org/abs/1612.01438