Zobrazeno 1 - 10
of 7 251
pro vyhledávání: '"Eriksson M"'
Autor:
Park, Sanghyeok, Benson, Jared, Corrigan, J., Dodson, J. P., Coppersmith, S. N., Friesen, Mark, Eriksson, M. A.
Latching techniques are widely used to enhance readout of qubits. These methods require precise tuning of multiple tunnel rates, which can be challenging to achieve under realistic experimental conditions, such as when a qubit is coupled to a single
Externí odkaz:
http://arxiv.org/abs/2408.15380
Autor:
Harpt, Benjamin, Corrigan, J., Holman, Nathan, Marciniec, Piotr, Rosenberg, D., Yost, D., Das, R., Ruskov, Rusko, Tahan, Charles, Oliver, William D., McDermott, R., Friesen, Mark, Eriksson, M. A.
We perform readout of a quantum-dot hybrid qubit coupled to a superconducting resonator through a parametric, longitudinal interaction mechanism. Our experiments are performed with the qubit and resonator frequencies detuned by $\sim$10 GHz, demonstr
Externí odkaz:
http://arxiv.org/abs/2407.08869
Autor:
Eriksson, M., Laine, M.
Publikováno v:
JCAP 06 (2024) 016
We estimate the equilibration rate of a nearly homogeneous Higgs field, displaced from its ground state during the onset of an electroweak phase transition. The computation is carried out with Hard Thermal Loop resummed perturbation theory, and a sig
Externí odkaz:
http://arxiv.org/abs/2404.06116
Autor:
Schug, Daniel, Kovach, Tyler J., Wolfe, M. A., Benson, Jared, Park, Sanghyeok, Dodson, J. P., Corrigan, J., Eriksson, M. A., Zwolak, Justyna P.
The rapid development of quantum dot (QD) devices for quantum computing has necessitated more efficient and automated methods for device characterization and tuning. Many of the measurements acquired during the tuning process come in the form of imag
Externí odkaz:
http://arxiv.org/abs/2402.13699
Autor:
Wolfe, M. A., Coe, Brighton X., Edwards, Justin S., Kovach, Tyler J., McJunkin, Thomas, Harpt, Benjamin, Savage, D. E., Lagally, M. G., McDermott, R., Friesen, Mark, Kolkowitz, Shimon, Eriksson, M. A.
Optical illumination of quantum-dot qubit devices at cryogenic temperatures, while not well studied, is often used to recover operating conditions after undesired shocking events or charge injection. Here, we demonstrate systematic threshold voltage
Externí odkaz:
http://arxiv.org/abs/2312.14011
Autor:
Frink, Collin C. D., Woods, Benjamin D., Losert, Merritt P., MacQuarrie, E. R., Eriksson, M. A., Friesen, Mark
Nanofabricated metal gate electrodes are commonly used to confine and control electrons in electrostatically defined quantum dots. However, these same gates impart a complicated strain geometry that affects the confinement potential and potentially i
Externí odkaz:
http://arxiv.org/abs/2312.09235
Autor:
Woods, Benjamin D., Soomro, Hudaiba, Joseph, E. S., Frink, Collin C. D., Joynt, Robert, Eriksson, M. A., Friesen, Mark
Publikováno v:
npj Quantum Inf 10, 54 (2024)
Engineering conduction-band valley couplings is a key challenge for Si-based spin qubits. Recent work has shown that the most reliable method for enhancing valley couplings entails adding Ge concentration oscillations to the quantum well. However, ul
Externí odkaz:
http://arxiv.org/abs/2310.18879
Autor:
Losert, Merritt P., Eriksson, M. A., Joynt, Robert, Rahman, Rajib, Scappucci, Giordano, Coppersmith, Susan N., Friesen, Mark
Publikováno v:
Phys. Rev. B 108, 125405 (2023)
Silicon/silicon-germanium heterostructures have many important advantages for hosting spin qubits. However, controlling the valley splitting (the energy splitting between the two low-lying conduction-band valleys) remains a critical challenge for ens
Externí odkaz:
http://arxiv.org/abs/2303.02499
Autor:
Eriksson, M., Goldberg, A. Z., Hiekkamäki, M., Bouchard, F., Leuchs, G., Fickler, R., Sanchez-Soto, L. L.
Publikováno v:
Phys. Rev. Applied 20, 024052 (2023)
We report an experiment estimating the three parameters of a general rotation. The scheme uses quantum states attaining the ultimate precision dictated by the quantum Cram\'er-Rao bound. We realize the states experimentally using the orbital angular
Externí odkaz:
http://arxiv.org/abs/2301.10265
Autor:
Corrigan, J., Harpt, Benjamin, Holman, Nathan, Ruskov, Rusko, Marciniec, Piotr, Rosenberg, D., Yost, D., Das, R., Oliver, William D., McDermott, R., Tahan, Charles, Friesen, Mark, Eriksson, M. A.
Publikováno v:
Physical Review Applied 20, 064005 (2023)
Superconducting cavities have emerged as a key tool for measuring the spin states of quantum dots. So far however, few experiments have explored longitudinal couplings between dots and cavities, and no solid-state qubit experiments have explicitly pr
Externí odkaz:
http://arxiv.org/abs/2212.02736