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Coherent Tunneling Adiabatic Passage (CTAP) has been proposed as a long-range physical qubit transport mechanism in solid-state quantum computing architectures. Although the mechanism can be implemented in either a chain of quantum dots or…

Inhomogeneous broadening of energy levels is one of the principal limiting factors for achieving "slow" or "stationary" light in solid state media by means of electromagnetically induced transparency (EIT), a quantum version of stimulated…

量子物理 · 物理学 2013-05-29 Johann-Heinrich Schönfeldt , Jason Twamley , Stojan Rebić

This paper addresses the problem of risk-aware fixed-time stabilization of a class of uncertain, output-feedback nonlinear systems modeled via stochastic differential equations. First, novel classes of certificate functions, namely…

最优化与控制 · 数学 2024-04-01 Mitchell Black , Georgios Fainekos , Bardh Hoxha , Dimitra Panagou

We introduce a class of non-Hermitian Hamiltonians that offers a dynamical approach to short-cut to adiabaticity (DASA). In particular, in our proposed 2 * 2 Hamiltonians, one eigenvalue is absolutely real and the other one is complex. This…

量子物理 · 物理学 2019-02-13 Fatemeh Mostafavi , Luqi , Yuan , Hamidreza Ramezani

High control in the preparation and manipulation of states is an experimental and theoretical important task in many quantum protocols. Shortcuts to adiabaticity methods allow to obtain desirable states of a adiabatic dynamics but in short…

量子物理 · 物理学 2024-10-28 Jonas F. G. Santos

The non-Abelian braiding describes the exchange behavior of anyons, which can be leveraged to encode qubits for quantum computing. Recently, this concept has been realized in classical photonic and acoustic systems. However, these…

Longitudinal coupling offers a compelling pathway for quantum nondemolition (QND) readout, but pulse design is constrained by hardware limitations such as the coupling strength and the photon number required to stay within the linear…

量子物理 · 物理学 2026-03-20 Yiming Yu , Yuan Qiu , Xinyu Zhao , Ye-Hong Chen , Yan Xia

We introduce a sample-efficient method for learning state-dependent stiffness control policies for dexterous manipulation. The ability to control stiffness facilitates safe and reliable manipulation by providing compliance and robustness to…

机器人学 · 计算机科学 2021-09-16 Mincheol Kim , Scott Niekum , Ashish D. Deshpande

Tremendous research efforts have been invested in exploring and designing so-called shortcuts to adiabaticity. These are finite-time processes that produce the same final states that would result from infinitely slow driving. Most of these…

统计力学 · 物理学 2020-08-11 Sebastian Deffner , Marcus V. S. Bonança

In this paper, we study the fast and noise-resistant population transfer, quantum entangled states preparation, and quantum entangled states' transition by constructing the shortcuts to adiabatic passage (STAP) for multiparticle based on…

量子物理 · 物理学 2014-09-29 Ye-Hong Chen , Yan Xia , Qing-Qin Chen , Jie Song

Long-distance fast and precise transfer of charge in semiconductor nanostructures is one of the goals for scalable electronic devices. We study theoretically the control of shuttling of an electron along a linear chain of semiconductor…

介观与纳米尺度物理 · 物理学 2022-12-07 María E. Rus , Rodolfo H. Romero , Sergio S. Gomez

In this work we derive novel ultrafast shortcuts for adiabatic rapid passage for a qubit where the only control variable is the longitudinal $z$-field, while the transverse $x$-field remains constant. This restrictive framework is pertinent…

量子物理 · 物理学 2019-07-24 Dionisis Stefanatos , Emmanuel Paspalakis

We present an effective and fast (few microseconds) procedure for transferring ultra-cold atoms from the ground state in a harmonic trap into the desired bands of an optical lattice. Our shortcut method is a designed pulse sequence where…

原子物理 · 物理学 2018-05-15 Xiaoji Zhou , Shengjie Jin , J. Schmiedmayer

Employing counterdiabatic shortcut to adiabaticity (STA), we design shorter and robust achromatic two- and three- waveguide couplers. We assume that the phase mismatch between the waveguides has a sign flip at maximum coupling, while the…

量子物理 · 物理学 2019-10-22 Wei Huang , L. K. Ang , Elica Kyoseva

We develop new pulse schemes to significantly speed up adiabatic state transfer protocols. Our general strategy involves adding corrections to an initial control Hamiltonian which harness non-adiabatic transitions. These corrections define…

介观与纳米尺度物理 · 物理学 2016-06-15 Alexandre Baksic , Hugo Ribeiro , Aashish A. Clerk

We put forth a hitherto unexplored control strategy that enables finite-speed, high-fidelity transport of a quantum wavepacket through a low-temperature dissipative medium. The control consists in confining the wavepacket within a shallow…

量子物理 · 物理学 2021-09-29 Arnab Chakrabarti , Igor Mazets , Tian-Niu Xu , Xi Chen , Gershon Kurizki

The adiabatic theorem and "shortcuts to adiabaticity" for the adiabatic dynamics of time-dependent decoherence-free subspaces are explored in this paper. Starting from the definition of the dynamical stable decoherence-free subspaces, we…

量子物理 · 物理学 2017-10-25 S. L. Wu , X. L. Huang , H. Li , X. X. Yi

STImulated Raman Adiabatic Passage (STIRAP) is a powerful technique for robust state transfer capabilities in quantum systems. This method, however encounters challenges for its implementation as a gate in qubit-subspace due to its…

量子物理 · 物理学 2025-01-28 Ujjawal Singhal , Harsh Vardhan Upadhyay , Irshad Ahmad , Vibhor Singh

Existing intelligent driving technology often has a problem in balancing smooth driving and fast obstacle avoidance, especially when the vehicle is in a non-structural environment, and is prone to instability in emergency situations.…

机器人学 · 计算机科学 2022-08-02 Yitian Wang , Jun Lin , Liu Zhang , Tianhao Wang , Hao Xu , Guanyu Zhang , Yang Liu

Autonomously driving vehicles must be able to navigate in dynamic and unpredictable environments in a collision-free manner. So far, this has only been partially achieved in driverless cars and warehouse installations where marked…

机器人学 · 计算机科学 2022-07-22 Marcell Missura , Arindam Roychoudhury , Maren Bennewitz