Nonadiabatic landau–zener–stückelberg–majorana transitions, dynamics, and interference

V Ivakhnenko, SN Shevchenko, F Nori - Physics Reports, 2023 - Elsevier
Since the pioneering works by Landau, Zener, Stückelberg, and Majorana (LZSM), it has
been known that driving a quantum two-level system results in tunneling between its states …

Experimental test of the quantum Jarzynski equality with a trapped-ion system

S An, JN Zhang, M Um, D Lv, Y Lu, J Zhang, ZQ Yin… - Nature Physics, 2015 - nature.com
The Jarzynski equality relates the free-energy difference between two equilibrium states to
the work done on a system through far-from-equilibrium processes—a milestone that builds …

Dynamically corrected gates from geometric space curves

E Barnes, FA Calderon-Vargas, W Dong… - Quantum Science …, 2022 - iopscience.iop.org
Quantum information technologies demand highly accurate control over quantum systems.
Achieving this requires control techniques that perform well despite the presence of …

Nonadiabatic holonomic quantum computation in decoherence-free subspaces with trapped ions

ZT Liang, YX Du, W Huang, ZY Xue, H Yan - Physical Review A, 2014 - APS
Implementing nonadiabatic holonomic quantum computation in decoherence-free
subspaces may consolidate the advantages of both strategies and thus leads to suppression …

Quantum computation and simulation with vibrational modes of trapped ions

W Chen, J Gan, JN Zhang, D Matuskevich… - Chinese Physics …, 2021 - iopscience.iop.org
Vibrational degrees of freedom in trapped-ion systems have recently been gaining attention
as a quantum resource, beyond the role as a mediator for entangling quantum operations on …

Phonon arithmetic in a trapped ion system

M Um, J Zhang, D Lv, Y Lu, S An, JN Zhang… - Nature …, 2016 - nature.com
Single-quantum level operations are important tools to manipulate a quantum state.
Annihilation or creation of single particles translates a quantum state to another by adding or …

Reconstruction of the Jaynes-Cummings field state of ionic motion in a harmonic trap

D Lv, S An, M Um, J Zhang, JN Zhang, MS Kim, K Kim - Physical Review A, 2017 - APS
A quantum state is fully characterized by its density matrix or equivalently by its
quasiprobabilities in phase space. A scheme to identify the quasiprobabilities of a quantum …

Time-domain Landau-Zener-Stückelberg-Majorana interference in an optical lattice clock

WX Liu, T Wang, XF Zhang, WD Li - Physical Review A, 2021 - APS
The interference between a sequence of Landau-Zener (LZ) transitions can produce Rabi
oscillations (LZROs). This phenomenon is a kind of time-domain Landau-Zener-Stückelberg …

Stückelberg interferometry using spin-orbit-coupled cold atoms in an optical lattice

S Liang, ZC Li, W Zhang, L Zhou, Z Lan - Physical Review A, 2020 - APS
Time evolution of spin-orbit-coupled cold atoms in an optical lattice is studied, with a two-
band energy spectrum having two avoided crossings. A force is applied such that the atoms …

Noise-resistant Landau-Zener sweeps from geometrical curves

F Zhuang, J Zeng, SE Economou, E Barnes - Quantum, 2022 - quantum-journal.org
Landau-Zener physics is often exploited to generate quantum logic gates and to perform
state initialization and readout. The quality of these operations can be degraded by noise …