212 citations · 1.4k across the 30 of their papers we have counts for
29 papers
Quantum annealing through a first-order phase transition: field theory approach
Diego Andrés Rivera Orona, Predrag Punoševac, Nikolai A. Sinitsyn
Unlike second-order phase transitions, a first-order transition has a stage, in which a system is trapped in a metastable state. The decay of this state leads to abundant excitatio…
Multivariable Painleve'-II equation: connection formulas for asymptotic solutions
N. A. Sinitsyn
For an integrable generalization of the Painleve'-II equation (P-II) to a system of coupled equations with symmetry breaking terms, an asymptotically exact WKB analysis is applied…
Broadband spectroscopy of thermodynamic magnetization fluctuations through a ferromagnetic spin-reorientation transition
A. L. Balk, F. Li, I. Gilbert +3
We use scanning optical magnetometry to study the broadband frequency spectra of spontaneous magnetization fluctuations, or "magnetization noise", in an archetypal ferromagnetic fi…
Computing with a single qubit faster than the computation quantum speed limit
N. A. Sinitsyn
The possibility to save and process information in fundamentally indistinguishable states is the quantum mechanical resource that is not encountered in classical computing. I demon…
Constraints on scattering amplitudes in multistate Landau-Zener theory
N. A. Sinitsyn, J. Lin, V. Y. Chernyak
We derive a set of constraints, which we will call hierarchy constraints (HCs), on scattering amplitudes of an arbitrary multistate Landau-Zener model (MLZM). The presence of addit…
Higher order spin noise spectroscopy of atomic spins in fluctuating external fields
Fuxiang Li, S. A. Crooker, N. A. Sinitsyn
We discuss the effect of external noisy magnetic fields on mesoscopic spin fluctuations that can be probed in semiconductors and atomic vapors by means of optical spin noise spectr…