Zobrazeno 1 - 10
of 944
pro vyhledávání: '"Whalen, J."'
Autor:
Kanungo, S. K., Whalen, J. D., Lu, Y., Yuan, M., Dasgupta, S., Dunning, F. B., Hazzard, K. R. A., Killian, T. C.
We demonstrate a platform for synthetic dimensions based on coupled Rydberg levels in ultracold atoms, and we implement the single-particle Su-Schrieffer-Heeger (SSH) Hamiltonian. Rydberg levels are interpreted as synthetic lattice sites, with tunnel
Externí odkaz:
http://arxiv.org/abs/2101.02871
Publikováno v:
Phys. Rev. A 103, 023111 (2021)
We demonstrate photoassociation (PA) of ultracold fermionic $^{87}$Sr atoms. The binding energies of a series of molecular states on the $^1\Sigma^+_u$ $5s^2\,^1$S$_0+5s5p\,^1$P$_1$ molecular potential are fit with the semiclassical LeRoy-Bernstein m
Externí odkaz:
http://arxiv.org/abs/2011.11936
Autor:
Kanungo, S. K., Whalen, J. D., Lu, Y., Killian, T. C., Dunning, F. B., Yoshida, S., Burgdörfer, J.
Measurements of the loss rates for strontium n$^{3}$S$_{1}$ Rydberg atoms excited in a dense BEC are presented for values of principal quantum number $n$ in the range $49\lesssim n \lesssim 150$ and local atom densities of $\sim1$ to $3\times10^{14}$
Externí odkaz:
http://arxiv.org/abs/2009.02399
Autor:
Whalen, J. D., Kanungo, S. K., Lu, Y., Yoshida, S., Burgörfer, J., Dunning, F. B., Killian, T. C.
Publikováno v:
Phys. Rev. A 101, 060701 (2020)
We report the creation of heteronuclear ultralong-range Rydberg-molecule dimers by excitation of minority $^{88}\text{Sr}$ atoms to $5sns\,^3S_1$ Rydberg states ($n=31-39$) in a dense background of $^{84}\text{Sr}$. We observe an isotope shift of the
Externí odkaz:
http://arxiv.org/abs/2004.14585
Autor:
Ding, R., Kanungo, S. K., Whalen, J. D., Killian, T. C., Dunning, F. B., Yoshida, S., Burgdörfer, J.
Photoexcitation rates for creation of ultralong-range Rydberg molecules (ULRM) with 31$\lesssim n \lesssim41$ in both ground and excited vibrational levels in cold ($T\sim900$~nK) gases of polarized and unpolarized $^{87}$Sr are presented. The measur
Externí odkaz:
http://arxiv.org/abs/1909.04634
Autor:
Whalen, J. D., Kanungo, S. K., Ding, R., Wagner, M., Schmidt, R., Sadeghpour, H. R., Yoshida, S., Burgdörfer, J., Dunning, F. B., Killian, T. C.
Publikováno v:
Phys. Rev. A 100, 011402 (2019)
We present photo-excitation of ultra-long-range Rydberg molecules as a probe of spatial correlations in quantum gases. Rydberg molecules can be created with well-defined internuclear spacing, set by the radius of the outer lobe of the Rydberg electro
Externí odkaz:
http://arxiv.org/abs/1903.11526
Autor:
Ding, R., Whalen, J. D., Kanungo, S. K., Killian, T. C., Dunning, F. B., Yoshida, S., Burgdörfer, J.
Publikováno v:
Phys. Rev. A 98, 042505 (2018)
A combined experimental and theoretical spectroscopic study of high-$n$, ${30 \lesssim n \lesssim 100}$, triplet $\text{S}$ and $\text{D}$ Rydberg states in $^{87}\text{Sr}$ is presented. $^{87}\text{Sr}$ has a large nuclear spin, ${I=9/2}$, and at h
Externí odkaz:
http://arxiv.org/abs/1808.05987
Autor:
Schmidt, R., Whalen, J. D., Ding, R., Camargo, F., Woehl Jr., G., Yoshida, S., Burgdorfer, J., Dunning, F. B., Demler, E., Sadeghepour, H. R., Killian, T. C.
We present a quantum many-body description of the excitation spectrum of Rydberg polarons in a Bose gas. The many-body Hamiltonian is solved with functional determinant theory, and we extend this technique to describe Rydberg polarons of finite mass.
Externí odkaz:
http://arxiv.org/abs/1709.01838
Autor:
Whalen, J. D., Camargo, F., Ding, R., Killian, T. C., Dunning, F. B., Pérez-Ríos, J., Yoshida, S., Burgdörfer, J.
Publikováno v:
Phys. Rev. A 96, 042702 (2017)
The lifetimes and decay channels of ultralong-range Rydberg molecules created in a dense BEC are examined by monitoring the time evolution of the Rydberg population using field ionization. Studies of molecules with values of principal quantum number,
Externí odkaz:
http://arxiv.org/abs/1707.02354
Autor:
Camargo, F., Schmidt, R., Whalen, J. D., Ding, R., Woehl Jr., G., Yoshida, S., Burgdörfer, J., Dunning, F. B., Sadeghpour, H. R., Demler, E., Killian, T. C.
Publikováno v:
Phys. Rev. Lett. 120, 083401 (2018)
We report spectroscopic observation of Rydberg polarons in an atomic Bose gas. Polarons are created by excitation of Rydberg atoms as impurities in a strontium Bose-Einstein condensate. They are distinguished from previously studied polarons by macro
Externí odkaz:
http://arxiv.org/abs/1706.03717