Zobrazeno 1 - 10
of 1 319
pro vyhledávání: '"Beekman M."'
Autor:
Muthusubramanian, N., Duivestein, P., Zachariadis, C., Finkel, M., van der Meer, S. L. M., Veen, H. M., Beekman, M. W., Stavenga, T., Bruno, A., DiCarlo, L.
We investigate die-level and wafer-scale uniformity of Dolan-bridge and bridgeless Manhattan Josephson junctions, using multiple substrates with and without through-silicon vias (TSVs). Dolan junctions fabricated on planar substrates have the highest
Externí odkaz:
http://arxiv.org/abs/2304.09111
Autor:
Vallés-Sanclemente, S., van der Meer, S. L. M., Finkel, M., Muthusubramanian, N., Beekman, M., Ali, H., Marques, J. F., Zachariadis, C., Veen, H. M., Stavenga, T., Haider, N., DiCarlo, L.
We present the use of grounding airbridge arrays to trim the frequency of microwave coplanar-waveguide (CPW) resonators post fabrication. This method is compatible with the fabrication steps of conventional CPW airbridges and crossovers and increases
Externí odkaz:
http://arxiv.org/abs/2302.10705
Autor:
Marques, J. F., Ali, H., Varbanov, B. M., Finkel, M., Veen, H. M., van der Meer, S. L. M., Valles-Sanclemente, S., Muthusubramanian, N., Beekman, M., Haider, N., Terhal, B. M., DiCarlo, L.
Publikováno v:
Phys. Rev. Lett. 130, 250602 (2023)
Minimizing leakage from computational states is a challenge when using many-level systems like superconducting quantum circuits as qubits. We realize and extend the quantum-hardware-efficient, all-microwave leakage reduction unit (LRU) for transmons
Externí odkaz:
http://arxiv.org/abs/2302.09876
Autor:
Moreira, M. S., Guerreschi, G. G., Vlothuizen, W., Marques, J. F., van Straten, J., Premaratne, S. P., Zou, X., Ali, H., Muthusubramanian, N., Zachariadis, C., van Someren, J., Beekman, M., Haider, N., Bruno, A., Almudever, C. G., Matsuura, A. Y., DiCarlo, L.
Artificial neural networks are becoming an integral part of digital solutions to complex problems. However, employing neural networks on quantum processors faces challenges related to the implementation of non-linear functions using quantum circuits.
Externí odkaz:
http://arxiv.org/abs/2212.10742
Autor:
Marques, J. F., Varbanov, B. M., Moreira, M. S., Ali, H., Muthusubramanian, N., Zachariadis, C., Battistel, F., Beekman, M., Haider, N., Vlothuizen, W., Bruno, A., Terhal, B. M., DiCarlo, L.
Publikováno v:
Nature Physics 18, 80 (2022)
We realize a suite of logical operations on a distance-two logical qubit stabilized using repeated error detection cycles. Logical operations include initialization into arbitrary states, measurement in the cardinal bases of the Bloch sphere, and a u
Externí odkaz:
http://arxiv.org/abs/2102.13071
Autor:
Sagastizabal, R., Premaratne, S. P., Klaver, B. A., Rol, M. A., Negîrneac, V., Moreira, M., Zou, X., Johri, S., Muthusubramanian, N., Beekman, M., Zachariadis, C., Ostroukh, V. P., Haider, N., Bruno, A., Matsuura, A. Y., DiCarlo, L.
The preparation of thermal equilibrium states is important for the simulation of condensed-matter and cosmology systems using a quantum computer. We present a method to prepare such mixed states with unitary operators, and demonstrate this technique
Externí odkaz:
http://arxiv.org/abs/2012.03895
Autor:
Negîrneac, V., Ali, H., Muthusubramanian, N., Battistel, F., Sagastizabal, R., Moreira, M. S., Marques, J. F., Vlothuizen, W., Beekman, M., Haider, N., Bruno, A., DiCarlo, L.
Publikováno v:
Phys. Rev. Lett. 126, 220502 (2021)
We introduce the sudden variant (SNZ) of the Net Zero scheme realizing controlled-$Z$ (CZ) gates by baseband flux control of transmon frequency. SNZ CZ gates operate at the speed limit of transverse coupling between computational and non-computationa
Externí odkaz:
http://arxiv.org/abs/2008.07411
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Autor:
Bultink, C. C., O'Brien, T. E., Vollmer, R., Muthusubramanian, N., Beekman, M. W., Rol, M. A., Fu, X., Tarasinski, B., Ostroukh, V., Varbanov, B., Bruno, A., DiCarlo, L.
Publikováno v:
Science Advances 20 Mar 2020: Vol. 6, no. 12
Protecting quantum information from errors is essential for large-scale quantum computation. Quantum error correction (QEC) encodes information in entangled states of many qubits, and performs parity measurements to identify errors without destroying
Externí odkaz:
http://arxiv.org/abs/1905.12731
Autor:
Sagastizabal, R., Bonet-Monroig, X., Singh, M., Rol, M. A., Bultink, C. C., Fu, X., Price, C. H., Ostroukh, V. P., Muthusubramanian, N., Bruno, A., Beekman, M., Haider, N., O'Brien, T. E., DiCarlo, L.
Publikováno v:
Phys. Rev. A 100, 010302 (2019)
Variational quantum eigensolvers offer a small-scale testbed to demonstrate the performance of error mitigation techniques with low experimental overhead. We present successful error mitigation by applying the recently proposed symmetry verification
Externí odkaz:
http://arxiv.org/abs/1902.11258