Results 41 to 50 of about 615,680 (330)
Integrability, stability, and adiabaticity in nonlinear stimulated Raman adiabatic passage [PDF]
Phys. Rev. Lett. 99, 223903 (2007), 2007 We study dynamics of a two-color photoassociation of atoms into diatomic molecules via nonlinear Stimulated Raman adiabatic passage (STIRAP) process. This system has a famous counterpart in (linear) quantum mechanics, and been discussed recently in the context of generalizing quantum adiabatic theorem to nonlinear systems.
arxiv +1 more source
Efficient, Broadband and Robust Frequency Conversion by Fully Nonlinear Adiabatic Three Wave Mixing [PDF]
, 2013 A comprehensive physical model of adiabatic three wave mixing is developed for the fully nonlinear regime, i.e. without making the undepleted pump approximation. The conditions for adiabatic evolution are rigorously derived, together with an estimate of the bandwidth of the process.
arxiv +1 more source
Breaking the quantum adiabatic speed limit by jumping along geodesics [PDF]
Science Advances 5, eaax3800 (2019), 2017 Quantum adiabatic evolutions find a broad range of applications in quantum physics and quantum technologies. The traditional form of the quantum adiabatic theorem limits the speed of adiabatic evolution by the minimum energy gaps of the system Hamiltonian.
arxiv +1 more source
Hypercomputation with quantum adiabatic processes
Theoretical Computer Science, 2004 AbstractDespite the recursive non-computability of Hilbert's tenth problem, we outline and argue for a quantum algorithm that is based on the Quantum Adiabatic Theorem. It is explained how this algorithm can solve Hilbert's tenth problem. The algorithm is then considered in the context of several “no-go” arguments against such hypercomputation. Logical
openaire +3 more sources
Shortcuts to adiabaticity for Lévy processes in harmonic traps
Physical Review E, 2022 15 pages, 7 ...
Baldovin, Marco +2 more
openaire +5 more sources
New Journal of Physics, 2015 The time evolution and the asymptotic outcome of a Landau–Zener–Stueckelberg–Majorana (LZ) process under continuous weak non-selective measurement is analyzed.
Anna Novelli +2 more
doaj +1 more source
Counterdiabatic driving for long-lived singlet state preparation [PDF]
, 2023 The quantum adiabatic method, which maintains populations in their instantaneous eigenstates throughout the state evolution, is an established and often a preferred choice for state preparation and manipulation. Though it minimizes the driving cost significantly, its slow speed is a severe limitation in noisy intermediate-scale quantum (NISQ) era ...
arxiv +1 more source
Astronomische Nachrichten, Volume 343, Issue 9-10, November-December 2022., 2022 Abstract The advent of ultra‐precise photometry space missions enables the possibility of investigating stellar interiors with mixed modes. The structural variations induced by the discontinuity of the chemical composition left behind during the first dredge–up is an important feature in the stellar mid‐layers located between the hydrogen‐burning shell
Chen Jiang
wiley +1 more source
Harnessing Outer Space for Improved Electrocaloric Cooling
Advanced Functional Materials, EarlyView.A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo +8 more
wiley +1 more source
Adiabatic Time Evolution in Spin-Systems [PDF]
Phys. Rev. A 69, 042320 (2004), 2003 Adiabatic processes in the quantum Ising model and the anisotropic Heisenberg model are discussed. The adiabatic processes are assumed to consist in the slow variation of the strength of the magnetic field that environs the spin-systems. These processes are of current interest in the treatment of cold atoms in optical lattices and in Adiabatic Quantum ...
arxiv +1 more source