منابع مشابه
Multiqubit Spectroscopy of Gaussian Quantum Noise
We introduce multi-pulse quantum noise spectroscopy protocols for spectral estimation of the noise affecting multiple qubits coupled to Gaussian dephasing environments including both classical and quantum sources. Our protocols are capable of reconstructing all the noise autoand cross-correlation spectra entering the multiqubit dynamics. We argue that this capability is crucial not only for met...
متن کاملQuantum-noise-limited optical frequency comb spectroscopy.
We achieve a quantum-noise-limited absorption sensitivity of 1.7×10(-12) cm(-1) per spectral element at 400 s of acquisition time with cavity-enhanced frequency comb spectroscopy, the highest demonstrated for a comb-based technique. The system comprises a frequency comb locked to a high-finesse cavity and a fast-scanning Fourier transform spectrometer with an ultralow-noise autobalancing detect...
متن کاملEquivalence Checking in Multi-level Quantum Systems
Motivated by its superiority compared to conventional solutions in many applications, quantum computation has intensely been investigated from a theoretical, physical, and design perspective. While these investigations mainly focused on two-level quantum systems, recently also advantages and benefits of higher-level quantum systems became evident. Though this led to several approaches for the r...
متن کاملNoise and Decoherence in Quantum Two-Level Systems
Motivated by recent experiments with Josephson-junction circuits we reconsider decoherence effects in quantum two-level systems (TLS). On one hand, the experiments demonstrate the importance of 1/f noise, on the other hand, by operating at symmetry points one can suppress noise effects in linear order. We, therefore, analyze noise sources with a variety of power spectra, with linear or quadrati...
متن کاملDeep Level Transient Spectroscopy in Quantum Dot Characterization
Deep level transient spectroscopy (DLTS) for investigating electronic properties of self-assembled InAs/ GaAs quantum dots (QDs) is described in an approach, where experimental and theoretical DLTS data are compared in a temperature-voltage representation. From such comparative studies, the main mechanisms of electron escape from QD-related levels in tunneling and more complex thermal processes...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Communications
سال: 2021
ISSN: 2041-1723
DOI: 10.1038/s41467-021-21098-3