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Quantum control methods for three-level systems have become recently an important direction of research in quantum information science and technology. Here we present numerical simulations using realistic experimental parameters for quantum…

Quantum Physics · Physics 2021-11-24 Shruti Dogra , Gheorghe Sorin Paraoanu

We consider combined stimulated Raman adiabatic passage (STIRAP) and fast forward field (FFF) control of selective vibrational population transfer in a polyatomic molecule. The motivation for using this combination control scheme is…

Mesoscale and Nanoscale Physics · Physics 2015-08-19 Shumpei Masuda , Stuart A. Rice

We propose a practical physical system for creation of a stationary entanglement by dissipation without employing the environment engineering techniques. The system proposed is composed of two perfectly distinguishable atoms, through their…

Quantum Physics · Physics 2015-05-20 A. F. Alharbi , Z. Ficek

We discuss the realization of a magnonic version of the STImulated-Raman-Adiabatic-Passage (m-STIRAP) mechanism using micromagnetic simulations. We consider the propagation of magnons in curved magnonic directional couplers. Our results…

Mesoscale and Nanoscale Physics · Physics 2021-06-24 Qi Wang , Thomas Brächer , Michael Fleischhauer , Burkard Hillebrands , Philipp Pirro

The adiabatic manipulation of quantum states is a powerful technique that has opened up new directions in quantum engineering, enabling tests of fundamental concepts such as the Berry phase and its nonabelian generalization, the observation…

Quantum Physics · Physics 2016-11-29 K. S. Kumar , A. Vepsalainen , S. Danilin , G. S. Paraoanu

We present a dissipative protocol to engineer two $^{87}Rb$ atoms into a form of three-dimensional entangled state via spontaneous emission. The combination of coupling between ground states via microwave fields and dissipation induced by…

Quantum Physics · Physics 2014-01-22 Xiao-Qiang Shao , Tai-Yu Zheng , C. H. Oh , Shou Zhang

We develop a scheme for deterministic generation of an entangled state between two atoms on different Rydberg states via a chirped adiabatic passage, which directly connects the initial ground and target entangled states and also does not…

Atomic Physics · Physics 2017-04-05 Jing Qian , Weiping Zhang

We propose a new protocol for thr manipulation of a three-level artificial atom in Lambda ($\Lambda$) configuration in the absence of a direct pump coupling. It allows faithful, selective and robust population transfer analogous to…

Quantum Physics · Physics 2016-06-01 P. G. Di Stefano , E. Paladino , T. J. Pope , G. Falci

We propose a scheme to create distant entangled atomic states. It is based on driving two (or more) atoms with a weak laser pulse, so that the probability that two atoms are excited is negligible. If the subsequent spontaneous emission is…

Quantum Physics · Physics 2009-10-31 C. Cabrillo , J. I. Cirac , P. Garcia-Fernandez , P. Zoller

The adiabatic passage scheme for quantum state synthesis, in which atomic Zeeman coherences are mapped to photon states in an optical cavity, is extended to the general case of two degenerate cavity modes with orthogonal polarization.…

Quantum Physics · Physics 2009-11-06 W. Lange , H. J. Kimble

We propose a scheme to perform basic gates of quantum computing and prepare entangled states in a system with cold trapped ions located in a single mode optical cavity. General quantum computing can be made with both motional state of the…

Quantum Physics · Physics 2009-11-07 Mang Feng , Xiaoguang Wang

The space-time method is applied to a model system-the Simple Harmonic Oscillator in a laser field to simulate the Stimulated Raman Adiabatic Passage (STIRAP) process. The Space-Time method is a computational theory first introduced by…

Computational Physics · Physics 2013-06-04 Xingjun Zhang , Charles A. Weatherford

Quantum battery is an emerging subject in the field of quantum thermodynamics, which is applied to charge, store and dispatch energy in quantum systems. In this work, we propose a fast and stable charging protocol based on the adiabatic…

Quantum Physics · Physics 2021-04-27 Hanyuan Hu , Shifan Qi , Jun Jing

We show theoretically that it is possible to form a cold molecular ion from a pair of colliding atom and ion at low energy by photoassociative two-photon Raman processes. We explore the possibility of stimulated Raman adiabatic passage…

Atomic Physics · Physics 2016-09-13 Dibyendu Sardar , Somnath Naskar , Arpita Pal , Bimalendu Deb

We analyze a scheme for preparation of magnetically ordered states of two-component bosonic atoms in optical lattices. We compute the dynamics during adiabatic and optimized time-dependent ramps to produce ground states of effective spin…

High-fidelity entangled Bell states are of great interest in quantum physics. Entanglement of ultracold neutral atoms in two spatially separated optical dipole traps is promising for implementation of quantum computing and quantum…

Atomic Physics · Physics 2018-03-14 I. I. Beterov , G. N. Hamzina , E. A. Yakshina , D. B. Tretyakov , V. M. Entin , I. I. Ryabtsev

We explore protocols for three-state adiabatic passage where the tunnel matrix elements are varied digitally, rather than smoothly as is the case with conventional adiabatic passage. In particular, we focus on the STIRAP and related…

Quantum Physics · Physics 2013-07-09 Jesse A. Vaitkus , Andrew D. Greentree

We theoretically examine Raman photoassociation of a Bose-Einstein condensate, revisiting stimulated Raman adiabatic passage (STIRAP). Due to collisional mean-field shifts, efficient molecular conversion requires strong coupling and low…

Atomic Physics · Physics 2007-05-23 Matt Mackie , Kari Harkonen , Anssi Collin , Kalle-Antti Suominen , Juha Javanainen

We propose a method to produce entangled spin squeezed states of a large number of atoms inside an optical cavity. By illuminating the atoms with bichromatic light, the coupling to the cavity induces pairwise exchange of excitations which…

Quantum Physics · Physics 2009-11-07 Anders S. Sorensen , Klaus Molmer

We report on the creation of ultracold 84Sr2 molecules in the electronic ground state. The molecules are formed from atom pairs on sites of an optical lattice using stimulated Raman adiabatic passage (STIRAP). We achieve a transfer…

Quantum Gases · Physics 2012-09-18 Simon Stellmer , Benjamin Pasquiou , Rudolf Grimm , Florian Schreck