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We investigate periodical oscillations in the conductance of suspended Au and Pt atomic chains during elongation under mechanical stress. Analysis of conductance and shot noise measurements reveals that the oscillations are mainly related…

Mesoscale and Nanoscale Physics · Physics 2015-09-30 Ran Vardimon , Tamar Yelin , Marina Klionsky , Soumyajit Sarkar , Ariel Biller , Leeor Kronik , Oren Tal

We report the experimental observation of tunable, non-reciprocal quantum transport of a Bose-Einstein condensate in a momentum lattice. By implementing a dissipative Aharonov-Bohm (AB) ring in momentum space and sending atoms through it,…

Quantum Gases · Physics 2020-02-26 Wei Gou , Tao Chen , Dizhou Xie , Teng Xiao , Tian-Shu Deng , Bryce Gadway , Wei Yi , Bo Yan

We investigate the dynamics of a spin system with facilitation constraint that can be studied using Rydberg atoms in arrays of optical tweezer traps. The elementary degrees of freedom of the system are domains of Rydberg excitations that…

Quantum Physics · Physics 2024-10-30 Matteo Magoni , Chris Nill , Igor Lesanovsky

A method is developed for solving nonlinear systems of differential, or integrodifferential, equations with stochastic fields. The method makes it possible to give an accurate solution for an interesting physical problem: What are the…

Statistical Mechanics · Physics 2009-10-30 V. I. Yukalov

We demonstrate an alternative nuclear spin resonance using radio frequency (RF) electric field (nuclear electric resonance: NER) instead of magnetic field. The NER is based on the electronic control of electron spins forming a domain…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 N. Kumada , T. Kamada , S. Miyashita , Y. Hirayama , T. Fujisawa

An unexpectedly large transient magnetization induced by circularly polarized ferroelectric phonons was recently observed in a nonmagnetic insulator SrTiO3 [Nature 628, 534 (2024)]. We use a minimal molecular orbital model to demonstrate…

Materials Science · Physics 2025-06-06 Sergei Urazhdin

We demonstrate the experimental implementation of an optical lattice that allows for the generation of large homogeneous and tunable artificial magnetic fields with ultracold atoms. Using laser-assisted tunneling in a tilted optical…

Quantum Gases · Physics 2013-11-13 M. Aidelsburger , M. Atala , M. Lohse , J. T. Barreiro , B. Paredes , I. Bloch

The classical walking behaviors of a single atom in an amplitude-modulated standing wave lattice beyond the internal dynamics are investigated. Based on a simple effective model, we identify a diversity of dynamic regimes of atomic motion…

Quantum Physics · Physics 2014-03-24 Lin Zhang , H. Y. Kong , S. X. Qu

We investigate a Bose-Einstein condensate of $F= 1$ $^{87}$Rb atoms in a 2D spin-dependent optical lattice generated by intersecting laser beams with a superposition of polarizations. For $^{87}$Rb the effective interaction of an atom with…

Quantum Physics · Physics 2022-04-13 Piotr Szulim , Marek Trippenbach , Y. B. Band , Mariusz Gajda , Mirosław Brewczyk

A novel method and nanodevice are introduced that allows to rotate the single electron spin confined in a gated electrostatic InSb nanowire quantum dot. Proposed method does not require application of any (oscillating or static) external…

Mesoscale and Nanoscale Physics · Physics 2016-01-22 J. Pawłowski , P. Szumniak , S. Bednarek

We analyze the motion of an overdamped classical particle in a multidimensional periodic potential, driven by a weak external noise. We demonstrate that in steady-state, the presence of temporal correlations in the noise and spatial…

Condensed Matter · Physics 2009-10-31 A. W. Ghosh , S. V. Khare

We report the realization of correlated, density-dependent tunneling for fermionic 40K atoms trapped in an optical lattice. By appropriately tuning the frequency difference between a pair of Raman beams applied to a spin-polarized gas,…

Quantum Gases · Physics 2018-08-29 Wenchao Xu , William Morong , Hoi-Yun Hui , Vito W. Scarola , Brian DeMarco

We present a systematic study of spin and lattice dynamics in the quasi-one-dimensional spiral magnet CuBr2, using Raman scattering in conjunction with infrared and neutron spectroscopy. Along with the development of spin correlations upon…

Atomic-scale precision control of magnetic interactions facilitates a synthetic spin order useful for spintronics, including advanced memory and quantum logic devices. Conventional modulation of synthetic spin order has been limited to…

Strongly Correlated Electrons · Physics 2023-01-05 Seung Gyo Jeong , Sehwan Song , Sungkyun Park , Valeria Lauter , Woo Seok Choi

We present a physical mechanism that can cause the mitotic spindle to oscillate. The driving force for this mechanism emerges from the polymerization of astral microtubules interacting with the cell cortex. We show that Brownian ratchet…

Biological Physics · Physics 2010-05-19 Safura Rashid-Shomali , Ali Najafi

We control the quantum mechanical motion of neutral atoms in an optical lattice by driving microwave transitions between spin states whose trapping potentials are spatially offset. Control of this offset with nanometer precision allows for…

Laser cooled lanthanide atoms are ideal candidates with which to study strong and unconventional quantum magnetism with exotic phases. Here, we use state-of-the-art closed-coupling simulations to model quantum magnetism for pairs of…

Atomic Physics · Physics 2018-06-06 Ming Li , Eite Tiesinga , Svetlana Kotochigova

Electromagnetically induced optical (or photonic) lattices via atomic coherence in atomic ensembles have recently received great theoretical and experimental interest. We here conceive a way to generate electromagnetically induced moir\'{e}…

Optics · Physics 2022-03-02 Zhiming Chen , Xiuye Liu , Jianhua Zeng

Atomistic simulations hold significant value in clarifying crucial phenomena such as phase transitions and energy transport in materials science. Their success stems from the presence of potential energy functions capable of accurately…

The effect of radiation polarization attended with the motion of spinning charge in the magnetic field could be viewed through the classical theory of self-interaction. The quantum expression for the polarization time follows from the…

High Energy Physics - Theory · Physics 2007-05-23 S. L. Lebedev