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Atomic-scale characterization of spin textures in solids is essential for understanding and tuning properties of magnetic materials and devices. While high-energy electrons are employed for atomic-scale imaging of materials, they are…

Materials Science · Physics 2023-12-29 Jizhe Cui , Haozhi Sha , Wenfeng Yang , Rong Yu

Reconfigurable beam splitters capable of being arbitrarily programmed for the power splitting ratios are vital for the adaptive optical networks and photonic computing. Conventional mechanisms such as thermo-optic, free-carrier, or…

By using a generalized Bopp's shift formulation, instead of star product method, we investigate the Aharonov-Casher(AC) effect for a spin-1 neutral particle in non-commutative(NC) quantum mechanics. After solving the Kemmer equations both…

Mathematical Physics · Physics 2008-11-26 Sayipjamal Dulat , Kang Li

We describe a macroscopic beam splitter for polar neutral molecules. A complex electrode structure is required for the beam splitter which would be very difficult to produce with traditional manufacturing methods. Instead, we make use of a…

Chemical Physics · Physics 2017-05-03 Sean D. S. Gordon , Andreas Osterwalder

Non-linear effects have become increasingly relevant in modern circular particle accelerators, and in recent years a change of paradigm has appeared, the attitude towards nonlinear effects having shifted from fighting them to exploiting…

Accelerator Physics · Physics 2022-02-11 Andrea Franchi , Massimo Giovannozzi

We consider many-body states of bosonic spinor atoms which, at the mean-field level, can be characterized by a single-particle wave function. Such states include BEC phases and insulating Mott states with one atom per site. We describe and…

Strongly Correlated Electrons · Physics 2009-11-11 Ryan Barnett , Ari Turner , Eugene Demler

We propose a continuous variable quantum state tomography protocol of electrons which result from the ionization of atoms or molecules by the absorption of extreme ultraviolet light pulses. Our protocol is benchmarked against a direct…

We report on the direct measurement of the electron spin splitting and the accompanying nuclear Overhauser (OH) field, and thus the underlying nuclear spin polarization (NSP) and fluctuation bandwidth, in a single InAs quantum dot under…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 Aaron M. Ross , Allan S. Bracker , Michael K. Yakes , Daniel Gammon , L. J. Sham , Duncan G. Steel

Tune-out wavelengths measured with an atom interferometer are sensitive to laboratory rotation rates because of the Sagnac effect, vector polarizability, and dispersion compensation. We observed shifts in measured tune-out wavelengths as…

We study the entanglement effect of beam splitter on the temporally stable phase states. Specifically, we consider the eigenstates (phase states) of an unitary phase operator resulting from the polar decomposition of ladder operators of…

Quantum Physics · Physics 2015-06-11 M. Daoud , E. B. Choubabi

A nonclassical feature of the fourth-order interference at a beam splitter, that genuine photon spin singlets are emitted in predetermined directions even when incident photons are unpolarized, has been used in a proposal for an experiment…

Quantum Physics · Physics 2009-10-31 Mladen Pavicic

Quantum interference in Aharonov-Bohm (AB) ring structure provides additional control of spin at mesoscopic scale. We propose a scheme for spin filter by studying the coherent transport through the AB structure with lateral magnetic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. W. Wu , J. Zhou , Q. W. Shi

We propose the use of motional states of two interacting atoms trapped in a potential stroboscopically engineered by an optical tweezer as a means to implement a qubit-oscillator system, in analogy to those implemented in circuit quantum…

Over the regime of the radiation-induced zero-resistance states and associated oscillatory magnetoresistance, we propose a low magnetic field analog of quantum-Hall-limit techniques for the electrical detection of electron spin- and nuclear…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 R. G. Mani

We propose and investigate a hybrid optomechanical system consisting of a micro-mechanical oscillator coupled to the internal states of a distant ensemble of atoms. The interaction between the systems is mediated by a light field which…

Quantum Physics · Physics 2015-04-28 B. Vogell , T. Kampschulte , M. T. Rakher , A. Faber , P. Treutlein , K. Hammerer , P. Zoller

Bloch oscillations (i.e., coherent acceleration of matter waves by an optical lattice) and Bragg diffraction are integrated into light-pulse atom interferometers with large momentum splitting between the interferometer arms, and hence…

Atomic Physics · Physics 2010-04-22 Holger Mueller , Sheng-wey Chiow , Sven Herrmann , Steven Chu

Orbital angular momentum (OAM) of light represents a fundamental optical freedom that can be exploited to manipulate quantum state of atoms. In particular, it can be used to realize spin-orbital-angular-momentum (SOAM) coupling in cold…

We derive the normal modes for a rotating Coulomb ion crystal in a Penning trap, quantize the motional degrees of freedom, and illustrate how they can by driven by a spin-dependent optical dipole force to create a quantum spin simulator on…

Quantum Physics · Physics 2015-06-12 C. -C. Joseph Wang , Adam C. Keith , J. K. Freericks

The absorption of traveling photons resonant with electric dipole transitions of an atomic gas naturally leads to electric dipole spin wave excitations. For a number of applications, it would be highly desirable to shape and coherently…

Atomic Physics · Physics 2021-01-04 Yizun He , Lingjing Ji , Yuzhuo Wang , Liyang Qiu , Jian Zhao , Yudi Ma , Xing Huang , Saijun Wu , Darrick E. Chang

We report cooling of a single neutral atom to its three-dimensional vibrational ground state in an optical tweezer. After employing Raman sideband cooling for tens of milliseconds, we measure via sideband spectroscopy a three-dimensional…

Atomic Physics · Physics 2012-11-30 Adam M. Kaufman , Brian J. Lester , Cindy A. Regal