Results 11 to 20 of about 615,680 (330)
Perturbative Formulation and Non-adiabatic Corrections in Adiabatic Quantum Computing Schemes [PDF]
Phy. Rev. A 69, 024301 (2004), 2003 Adiabatic limit is the presumption of the adiabatic geometric quantum computation and of the adiabatic quantum algorithm. But in reality, the variation speed of the Hamiltonian is finite. Here we develop a general formulation of adiabatic quantum computing, which accurately describes the evolution of the quantum state in a perturbative way, in which ...
A. Ekert +19 more
arxiv +5 more sources
Exploring non-adiabaticity to CO reduction reaction through ab initio molecular dynamics simulation [PDF]
APL Materials, 2020 Non-adiabatic chemical reaction refers to the electronic excitation during reactions. This effect cannot be modeled by the ground-state Born–Oppenheimer molecular dynamics (BO-MD), where the electronic structure is at the ground state for every step of ...
Fan Zheng, Lin-wang Wang
doaj +2 more sources
Accelerating an adiabatic process by nonlinear sweeping [PDF]
Chinese Physics B, 2013 We investigate the acceleration of an adiabatic process with the same survival probability of the ground state by sweeping a parameter nonlinearly, fast in the wide gap region and slow in the narrow gap region, as contrast to the usual linear sweeping.
Wenxian Zhang +3 more
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On the topology of adiabatic passage [PDF]
, 2001 We examine the topology of eigenenergy surfaces characterizing the population transfer processes based on adiabatic passage. We show that this topology is the essential feature for the analysis of the population transfers and the prediction of its final result. We reinterpret diverse known processes, such as stimulated Raman adiabatic passage (STIRAP),
C. Zener +21 more
arxiv +4 more sources
Adiabatic reduction of a model of stochastic gene expression with jump Markov process
, 2013 This paper considers adiabatic reduction in a model of stochastic gene expression with bursting transcription considered as a jump Markov process. In this model, the process of gene expression with auto-regulation is described by fast/slow dynamics.
Romain Yvinec +3 more
openalex +6 more sources
Topological classification of adiabatic processes [PDF]
Physical Review B, 2011 Certain band insulators allow for the adiabatic pumping of quantized charge or spin for special time-dependences of the Hamiltonian. These "topological pumps" are closely related to two dimensional topological insulating phases of matter upon rolling the insulator up to a cylinder and threading it with a time dependent flux.
Dganit Meidan +2 more
openaire +3 more sources
Adiabatic processes like isothermal processes
Physical Review E, 2023 9 pages, 5 ...
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Success of digital adiabatic simulation with large Trotter step [PDF]
Phys. Rev. A 104, 052603 (2021), 2021 The simulation of adiabatic evolution has deep connections with Adiabatic Quantum Computation, the Quantum Approximate Optimization Algorithm and adiabatic state preparation. Here we address the error analysis problem in quantum simulation of adiabatic process using Trotter formulas.
arxiv +1 more source
Adiabaticity of emittance exchange due to crossing of the coupling resonance
Physical Review Accelerators and Beams, 2021 In circular accelerators, crossing the linear coupling resonance induces the exchange of the transverse emittances, provided the process is adiabatic. This has been considered in some previous works, where the description of the phenomenon has been laid ...
A. Bazzani +3 more
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Adiabatic theorem revisited: the unexpectedly good performance of adiabatic passage [PDF]
Phys. Rev. A 103, 062215 (2021), 2020 Adiabatic passage employs a slowly varying time-dependent Hamiltonian to control the evolution of a quantum system along the Hamiltonian eigenstates. For processes of finite duration, the exact time evolving state may deviate from the adiabatic eigenstate at intermediate times, but in numerous applications it is observed that this deviation reaches a ...
arxiv +1 more source