62 citations · 129 across the 9 of their papers we have counts for
9 papers
Scaling of silicon spin qubits under correlated noise
Juan S. Rojas-Arias, Leon C. Camenzind, Yi-Hsien Wu +8
The path to fault-tolerant quantum computing hinges on hardware that scales while remaining compatible with quantum error correction (QEC). Silicon spin qubits are a leading hardwa…
Noise cross-correlations from single-shot measurements
Juan S. Rojas-Arias, Peter Stano, Yi-Hsien Wu +3
We introduce a novel method that we call Single-Shot Cross-Spectroscopy (SSCS), for extracting the auto- and cross-power spectral densities of dephasing noise of a qubit pair. The…
Comparison of spin-qubit architectures for quantum error-correcting codes
Mauricio Gutiérrez, Juan S. Rojas-Arias, David Obando +1
We investigate the performance of two quantum error-correcting codes, the surface code and the Bacon-Shor code, for implementation with spin qubits in silicon. In each case, we con…
Inferring charge-noise source locations from correlations in spin qubits
Juan S. Rojas-Arias, Akito Noiri, Jun Yoneda +7
We investigate low-frequency noise in a spin-qubit device made in isotopically purified Si/Si-Ge. Observing sizable cross-correlations among energy fluctuations of different qubits…
The origins of noise in the Zeeman splitting of spin qubits in natural-silicon devices
Juan S. Rojas-Arias, Yohei Kojima, Kenta Takeda +7
We measure and analyze noise-induced energy-fluctuations of spin qubits defined in quantum dots made of isotopically natural silicon. Combining Ramsey, time-correlation of single-s…
Spatial noise correlations beyond nearest-neighbor in Si/SiGe spin qubits
Juan S. Rojas-Arias, Akito Noiri, Peter Stano +8
We detect correlations in qubit-energy fluctuations of non-neighboring qubits defined in isotopically purified Si/SiGe quantum dots. At low frequencies (where the noise is stronges…
Noise-correlation spectrum for a pair of spin qubits in silicon
J. Yoneda, J. S. Rojas-Arias, P. Stano +5
Semiconductor qubits are appealing for building quantum processors as they may be densely integrated due to small footprint. However, a high density raises the issue of noise corre…
Bayesian estimation of correlation functions
Angel Gutierrez-Rubio, Juan S. Rojas-Arias, Jun Yoneda +3
We apply Bayesian statistics to the estimation of correlation functions. We give the probability distributions of auto- and cross-correlations as functions of the data. Our procedu…
Estudio Teórico del espectro de emisión para un sistema microcavidad-punto cuántico en una aproximación de campo medio (Theoretical study of emission spectrum for a quantum dot-microcavity system in a mean field approximation)
Juan S. Rojas-Arias, B. Rodriguez, Herbert Vinck-Posada
En este trabajo, se obtiene una expresión numérica para calcular el espectro de emisión de un sistema microcavidad-punto cuántico usando una teoría de campo medio en el formalismo…