WebbShortly afterwards, an optical version of a Ramsey spectrometer typically used in atomic clocks was recognized also as an atom interferometer at the PTB in Braunschweig, … Webb20 mars 2024 · The qubit exhibits long T ∗ 2 exceeding 1 μs that is limited by dephasing due to the 29Si nuclei rather than charge noise thanks to the symmetric operation and a large micromagnet Zeeman field gradient. The randomized benchmarking shows 99.6% single gate fidelity which is the highest reported for singlet-triplet qubits. Received 13 …
Multi-parameter estimation with multi-mode Ramsey interferometry
Webb25 feb. 2024 · However, the necessary changes in parameters are not extreme: as noted in [30], an interferometer with mean atomic velocity 30 m/s, Raman beam separation 7.5 cm, and 3D atomic temperature 4 µK can... Webb5 nov. 2015 · Measurement of a magnetic-field gradient using differential atom interferometry. Varying the phase of the second π / 2 pulse of the Ramsey sequence for … eyebrow stencils amazon
Quantum back-action limits in dispersively measured Bose …
Webb8 apr. 2024 · Fig. 1: Photodetection measurement model and Ramsey interferometry. a Interaction. A Bose-Einstein condensate (BEC) illustrated in blue, is illuminated with far-detuned laser light ... Webb8 apr. 2024 · More recently, atom interferometers were used to measure the polarizability of lithium Miffre et al. and sodium Ekstrom et al. with an uncertainty of 0.7% and 0.35%, respectively. Near-field molecule interferometry was used to measure the polarizability ... This geometry is the familiar “two-wire” configuration Ramsey ... Webb14 apr. 2024 · We investigate the measurement uncertainties of a triple of positive-operator-valued measures based on statistical distance and formulate state-independent tight uncertainty inequalities satisfied ... eyebrow stencils elf