In this paper we propose a scheme for quasi-perfect state transfer in a network of dissipative harmonic oscillators. We consider ideal sender and receiver oscillators connected by a chain of nonideal transmitter oscillators coupled by nearest-neighbor resonances. From the algebraic properties of the dynamical quantities describing the evolution of the network state, we derive a criterion, fixing the coupling strengths between all the oscillators, apart from their natural frequencies, enabling perfect state transfer in the particular case of ideal transmitter oscillators. Our criterion provides an easily manipulated formula enabling perfect state transfer in the special case where the network nonidealities are disregarded. By adjusting the common frequency of the sender and the receiver oscillators to be out of resonance with that of the transmitters, we demonstrate that the sender's state tunnels to the receiver oscillator by virtually exciting the nonideal transmitter chain. This virtual process makes negligible the decay rate associated with the transmitter line on the expenses of delaying the time interval for the state transfer process. Apart from our analytical results, numerical computations are presented to illustrate our protocol.
Chaos and quantum regimes in $n$-photon driven, dissipative bosonic chains
Institute of Physics, \' E cole Polytechnique F\' e d\' e rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;Center for Quantum Science;Engineering, \' E cole Polytechnique F\' e d\' e rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
Dissipative quantum dynamics of bosonic atoms in a shallow 1D optical lattice
我们使用最近实验的参数[Fertig et al.,物理修订信函94,220402(2005)]。我们发现,由于动量的不确定性,一个小的,但不可忽略的,原子人口占据了相应的经典动力学的不稳定速度区域,导致观察到的耗散原子输运。由于晶格和限制增强的量子涨落,即使在静态蒸汽中也会产生这种人口,并且不会受到原子运动或有限温度的显著影响。
Asymptotic Entanglement across Dynamical Regimes of a Dissipative Bosonic Dimer
Peking University(北京大学);Hefei National Laboratory(合肥国家实验室);The Pennsylvania State University(宾夕法尼亚州立大学);Beijing University of Posts and Telecommunications(北京邮电大学);Shanxi University(山西大学)
Liouvillian exceptional points of any order in dissipative linear bosonic systems: Coherence functions and switching between ${\cal PT}$ and anti-${\cal PT}$ symmetries
Instantaneous Sobolev Regularization for Dissipative Bosonic Dynamics
Technical University of Munich(慕尼黑工业大学);Munich Center for Quantum Science and Technology(慕尼黑量子科学与技术中心);University of Cambridge(剑桥大学);Department of Mathematics, University of Tübingen(蒂宾根大学数学系)
Boundary-dependent dynamical instability of bosonic Green's function: Dissipative Bogoliubov-de Gennes Hamiltonian and its application to non-Hermitian skin effect
Chaotic and quantum dynamics in driven-dissipative bosonic chains
Institute of Physics, \' E cole Polytechnique F\' e d\' e rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;Center for Quantum Science;Engineering, \' E cole Polytechnique F\' e d\' e rale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;Laboratoire de Physique de l’\' E cole Normale Sup\' e rieure, ENS, Universit\' e PSL, CNRS, Sorbonne Universit\' e , Universit\' e Paris Cit\' e , F-75005 Paris, France
Macroscopic Particle Transport in Dissipative Long-Range Bosonic Systems
University of Tokyo(东京大学);RIKEN Center for Quantum Computing (RQC)(理化学研究所量子计算中心);RIKEN Cluster for Pioneering Research (CPR)(理化学研究所前沿研究集群);Japan Science and Technology (JST)(日本科学技术振兴机构);Yukawa Institute for Theoretical Physics, Kyoto University(京都大学汤川理论物理研究所)
Avoided crossings, degeneracies and Berry phases in the spectrum of quantum noise of driven-dissipative bosonic systems
Univ. Lille, CNRS, UMR 8523 - PhLAM - Physique des Lasers Atomes et Molécules(里尔大学,法国国家科学研究中心,联合研究实验室8523 - 激光原子与分子物理学);Dipartimento di Matematica, Università degli Studi di Bari Aldo Moro(巴里阿尔多·莫罗大学数学系)
Collectively pair-driven-dissipative bosonic arrays: exotic and self-oscillatory condensates
California Institute of Technology(加州理工学院);Wilczek Quantum Center, School of Physics and Astronomy, Shanghai Jiao Tong University(上海交通大学物理与天文学院斐兹克量子中心);Departament d’Òptica i Optometria i Ciències de la Visió, Universitat de València(瓦伦西亚大学光学、验光与视觉科学系)
Non-Gaussian Phase Transition and Cascade of Instabilities in the Dissipative Quantum Rabi Model
Duke Quantum Center, Duke University(杜克大学量子中心);Department of Physics, Duke University(杜克大学物理系);Department of Physics and Astronomy, Dartmouth College(达特茅斯学院物理与天文系);Department of Electrical and Computer Engineering, Duke University(杜克大学电气与计算机工程系);Department of Chemistry, Duke University(杜克大学化学系);National Quantum Laboratory, University of Maryland(马里兰大学国家量子实验室);Department of Physics, University of Maryland(马里兰大学物理系)