Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Walker, Thad G."'
Autor:
Berweger, Samuel, Prajapati, Nikunjkumar, Artusio-Glimpse, Alexandra B., Rotunno, Andrew P., Brown, Roger, Holloway, Christopher L., Simons, Matthew T., Imhof, Eric, Jefferts, Steven R., Kayim, Baran N., Viray, Michael A., Wyllie, Robert, Sawyer, Brian C., Walker, Thad G.
On-resonance Rydberg atom-based radio-frequency (RF) electric field sensing methods remain limited by the narrow frequency signal detection bands available by resonant transitions. The use of an additional RF tuner field to dress or shift a target Ry
Externí odkaz:
http://arxiv.org/abs/2209.14407
Autor:
Simons, Matthew T., Artusio-Glimpse, Alexandra B., Holloway, Christopher L., Imhof, Eric, Jefferts, Steven R., Wyllie, Robert, Sawyer, Brian C., Walker, Thad G
Publikováno v:
Phys. Rev. A 104, 032824 (2021)
We demonstrate the use of multiple atomic-level Rydberg-atom schemes for continuous frequency detection of radio frequency (RF) fields. Resonant detection of RF fields by electromagnetically-induced transparency and Autler-Townes (AT) in Rydberg atom
Externí odkaz:
http://arxiv.org/abs/2105.10561
Publikováno v:
Appl. Sci. 2020, 10, 7099
Inertial navigation systems generally consist of timing, acceleration, and orientation measurement units. Although much progress has been made towards developing primary timing sources such as atomic clocks, acceleration and orientation measurement u
Externí odkaz:
http://arxiv.org/abs/2012.14974
We demonstrate a novel quantum sensor for measuring non-magnetic spin-dependent interactions. This sensor utilizes $^{131}$Xe, $^{129}$Xe, and $^{85}$Rb which are continuously polarized transverse to a pulsed bias field. The transverse geometry of th
Externí odkaz:
http://arxiv.org/abs/1912.04991
Publikováno v:
Phys. Rev. Lett. 119, 180504 (2017)
We demonstrate low-loss measurement of the hyperfine ground state of Rubidium atoms in a dipole trap array of five sites by state dependent fluorescence detection. The presence of atoms and their internal states are minimally altered by utilizing cir
Externí odkaz:
http://arxiv.org/abs/1706.09497
Autor:
Walker, Thad G., Larsen, Michael S.
We present the basic theory governing spin-exchange pumped NMR gyros. We review the basic physics of spin-exchange collisions and relaxation as they pertain to precision NMR. We present a simple model of operation as an NMR oscillator and use it to a
Externí odkaz:
http://arxiv.org/abs/1604.03982
Autor:
Sorensen, Susan S.1 (AUTHOR), Walker, Thad G.1 (AUTHOR) tgwalker@wisc.edu
Publikováno v:
Sensors (14248220). May2023, Vol. 23 Issue 10, p4649. 16p.
Autor:
Ebert, Matthew, Gill, Alexander, Gibbons, Michael, Zhang, Xianli, Saffman, Mark, Walker, Thad G.
We use coherent excitation of 3-16 atom ensembles to demonstrate collective Rabi flopping mediated by Rydberg blockade. Using calibrated atom number measurements, we quantitatively confirm the expected $\sqrt{N}$ Rabi frequency enhancement to within
Externí odkaz:
http://arxiv.org/abs/1310.7561
Autor:
Walker, Thad G., Saffman, Mark
Publikováno v:
Adv. At. Mol. Opt. Phys. 61, 81 (2012)
Over the past few years we have built an apparatus to demonstrate the entanglement of neutral Rb atoms at optically resolvable distances using the strong interactions between Rydberg atoms. Here we review the basic physics involved in this process: l
Externí odkaz:
http://arxiv.org/abs/1202.5328
Publikováno v:
Optics Letters 37, 2247 (2012)
We describe an array of spin-exchange relaxation free optical magnetometers designed for detection of fetal magnetocardiography (fMCG) signals. The individual magnetometers are configured with a small volume with intense optical pumping, surrounded b
Externí odkaz:
http://arxiv.org/abs/1202.5019