Dhruv Kedar. Ana Maria Rey. ”Tobias Bothwell. bothwell [at]. Tobias Bothwell et al. Tew, Jun Ye, Colin J. The researchers responsible for the theoretical and experimental work leading up to this exciting, new optical-lattice-clock experiment include Kolkowitz, graduate students Sarah Bromley, Tobias Bothwell, and Andrew Koller, research associate George Marti, former senior research associate Michael Wall, former research associate Xibo. As a member of the Sr1 group I work on pushing the frontiers of accuracy and precision. Download PDF Abstract: Einstein's theory of general relativity states that clocks at different gravitational potentials tick at different rates - an effect known as the gravitational. Sherman,3 Judah Levine,3 Jian Yao,3, yJun Ye,1, zand Eric Oelker1, x 1JILA, NIST and University. e-mail: tobias. 125. Research Project: Quantum Computing with Trapped Ions. Whichever specific branch of physics I pursue I plan to. Wei is one of the hardest working and most dedicated people IAlexander Aeppli1†, Anjun Chu1,2†, Tobias Bothwell1†, Colin J. C. tobias. Robinson, Eric Oelker, Alexander Staron, Jun Ye. October 30, 2023 (87 years old) View obituary. Dwight R Mcbride. M. Matei, T. 1. I am a postdoctoral research associate working on laser cooling and trapping of YO molecules. Kennedy Download a PDF of the paper titled JILA SrI Optical Lattice Clock with Uncertainty of $2. This is something that has been going on for a little over 20 years now,” Tobias Bothwell, a doctoral student working with Ye, said. An advance in frequency ratio measurements lays the groundwork for future networks of mobile, airborne and remote optical clocks that will be used to test physical laws, perform relativistic geodesy and substantially improve international timekeeping. Clocks operating at optical frequencies have now. Bromley, Weston L. Clocks operating at optical frequencies have. Tobias MD. Overview. eduTobias Bothwell [. BODINE et al. 11040 Country Dr. Boulder Atomic Clock Optical Network (BACON) Collaboration* : Kyle Beloy , Martha I Bodine , Tobias Bothwell , Samuel M Brewer , Sarah L Bromley , Jwo-Sy Chen , Jean-Daniel Deschênes , Scott A Diddams , Robert J Fasano , Tara M Fortier , Youssef S Hassan , David B Hume , Dhruv Kedar , Colin J Kennedy , Isaac Khader , Amanda Koepke ,. UNIVERSITY. Discrimination and Harassment Policy and Procedures. 2003. Nature Photon. Be the first to contribute! Just click the "Edit page" button at the bottom of the page or learn more in the Biography submission. In this week’s issue, Tobias Bothwell, Jun Ye and their colleagues demonstrate this effect at a sub-millimetre scale. Hutson and Chemeitoi Kennedy and Lindsay Sonderhouse and Tobias Bothwell and Akihisa Goban and Dhruv Kedar and Christian Sanner and J. The design could help scientists detect dark matter. Room: Ballroom 111 A Chair: Wes Campbell, UCLA. Related: Tobias Bothwell, Resolving the gravitational redshift in a millimeter-scale atomic sample, Nature (2022). E02 Invited Live Streamed Deborah Jin Award for Outstanding Doctoral Thesis Research in Atomic, Molecular, or Optical Physics Session. They have been used to suppress direct tunneling but not spin transport and realize new types of spin Hamiltonians (9–11), generate spin-orbit coupling (SOC) via laser-assisted tunneling (12–15), emulate magnetic models in. Kedar, D. Published in Metrologia 14 June 2019. Kyungtae Kim, Alexander Aeppli, Tobias Bothwell, and Jun Ye Phys. Department of Physics, University of Colorado, Boulder, CO 80309, USA. If you find something abusive or that does not. Robinson, Tobias Bothwell, Dhruv Kedar, 1William R. gov (303) 497-3411 Project Status. All issues. Colin J. " Nature 591. Clocks operating at optical frequencies have. G. Meet the REUs. Cesium atoms are laser-cooled to ~300 nK, prepared in the magnetically insensitive m F = 0 state, and launched millimeters upward into free fall [see materials and methods for details (24)]. reference search 90 citations. Download the PDF 49. Robinson & Eric Oelker & Alexander Staron & Jun Ye, 2022. of Physics, University of Colorado Boulder) Ana Maria ReyHolly Leopardi, Kyle Beloy, Tobias Bothwell et al. The author has an hindex of 13. University of Wisconsin–Madison. The phone number. time, time-interval, and frequency signals, which are based on an ensemble of atomic clocks and frequency. org Read MoreTobias Bothwell at JILA in Boulder, Colorado, and his colleagues separated hundreds of thousands of strontium atoms into “pancake-shaped” blobs of 30 atoms. 201302;highest performance atomic clocks ever, they announced Feb. Research Associate. An optical lattice. Robinson, Tobias Bothwell, Dhruv Kedar, William R. However, by probing an optical clock transition with thousands of lattice-confined, ultracold fermionic strontium atoms, we observed density-dependent. reference search 90 citations. Mathias Bellaiche of Fayetteville and Tobias Bothwell of Oklahoma City are among 271 students in the nation to be named as Goldwater Scholars. Aho, Jasper D. Institute for Quantum Information and Matter (IQIM), California Institute of Technology, Pasadena, CA 91125, USA. Mathias Bellaiche of Fayetteville and Tobias Bothwell of Oklahoma City are among 271 students in the nation to be named as Goldwater Scholars. gov website. Martin Boyd Current Affiliation: AOSense, Inc. Sc Honors Pure Physics, Concordia University, Montreal, Quebec, 1994-1998 (Summa Cum Laude) Dr. Kennedy, Alexander Aeppli, Dhruv Kedar, John M. Tew, Jun Ye, Colin J. Robinson1, Eric Oelker1,3, Alexander Staron1, and Jun Ye1,* . Kennedy, Eric Oelker, John M. Carsten Klempt Institut für Quantenoptik,. 7897 (2022): 420-424. For more detailed information regarding the University of Colorado policies, please read the Discrimination and Harassment Policy and Procedures. Tobias Bothwell. nice one Tobias Bothwell and colleagues! (Jun Ye's lab has so many Sr sources I can't tell if I worked on this particular one, so I won't claim anything in that regard!)Tobias Bothwell [. Robinson1, Eric Oelker 1,3 , Alexander Staron 1 & Jun Ye 1 Einstein. Science Advances 8 (41), eadc9242, 2022. D. 125. Dhruv Kedar. Marti, G. A primary systematic effect of state-of-the-art optical lattice clocks is the density-dependent frequency shift ( 8, 9 ). Ongoing. M. Tracking Quantum Coherence in Polariton Condensates with Time-Resolved TomographyCreated May 31, 2018, Updated May 15, 2023. Tobias Bothwell (JILA, University of Colorado - Boulder) Dhruv Kedar (JILA, University of Colorado - Boulder) Jun Ye (JILA, University of Colorado - Boulder) The long term stability of optical local oscillators is of wide scientific interest, from studies of dark matter to applications in time scales. (May 29, 2020) e-Print: 2005. bothwell@colorado. Lett. Evaporative cooling to degeneracy proceeded by. In this week’s issue, Tobias Bothwell, Jun Ye and their colleagues demonstrate this effect at a sub-millimetre scale. Tew, Jun Ye, Colin J. " Nature 602. Created April 27, 2023, Updated July 3, 2023 HEADQUARTERS 100 Bureau Drive Gaithersburg, MD 20899 301-975-2000. We do so by combining the best ultrastable lasers in the world with our carefully controlled 1D strontium. 2022. I am grateful to postdoctoral researcher Wei Zhang for his work on the Sr clock laser, 689 nm cooling laser, and frequency comb. Robinson, C. bothwell@colorado. 3 . Contributors: Kyungtae Kim; Alexander Aeppli; Tobias Bothwell; Jun Ye Show more detail. This is something that has been going on for a little over 20 years now,” Tobias Bothwell, a doctoral student working with Ye, said. Legero, U. Milner, John M. Group Alumni have gone to pursue graduate studies at Cornell University (Erin Farmer), The University of Washington (James Sloan), The University of Colorado (Tobias Bothwell and Tyler Bishop), The University of Texas at Austin (Joseph Roll), among other places; others work at companies such as Samsung Telecommunications America (Cedric Horvath. Francis Stewart, 5th Earl of Bothwell (c. Tobias Bothwell's 23 research works with 1,450 citations and 6,476 reads, including: Evaluation of lattice light shift at mid 10$^{-19}$ uncertainty for a shallow lattice Sr optical clock. Lett. 125 (2020) 20, 201302 • e-Print: 2008. 1, which is significantly larger than that achieved in previous work, but still shy of quantum degeneracy. In this week’s issue, Tobias Bothwell, Jun Ye and their colleagues demonstrate this effect at a sub-millimetre scale. Demonstration of a Timescale Based on a Stable Optical Carrier William R. The author has done significant research in the topic(s): Atomic clock &. Sarah L Bromley. "Ini bukan hanya perhitungan. Created February 26, 2019, Updated April 7, 2023. Tobias Bothwell got the third place in 01:12:38. The thesis describes the theoretical and experimental aspects of this technique, as well as its applications to precision metrology and fundamental physics. Group Alumni have gone to pursue graduate studies at Cornell University (Erin Farmer), The University of Washington (James Sloan), The University of Colorado (Tobias Bothwell and Tyler Bishop), The University of Texas at Austin (Joseph Roll), among other places; others work at companies such as Samsung Telecommunications America (Cedric Horvath. Bromley 1, Weston L. Quantum entanglement of atoms enables precision measurement and frequency metrology beyond the standard quantum limit that is imposed by the quantum projection noise. We perform absolute measurement of the 27 Al + single-ion and 87 Sr neutral lattice clock frequencies at the National Institute of Standards and Technology and JILA at the University of Colorado against a global ensemble of primary frequency standards. We report on an improved systematic evaluation of the JILA SrI optical lattice clock, achieving a nearly identical uncertainty compared to the previous strontium record set by the JILA. The sum of the statistical and systematic uncertainties (2 methods, 3 clocks) in their frequency ratio measurements were 5. Towards this, we present our work engineering the latest generation of 1D optical lattice clocks. , Degenerate Polar Molecules With Controlled Interactions And Reactivity, University of Colorado Boulder, 2022. An advance in frequency ratio measurements lays the groundwork for future networks of mobile, airborne and remote optical clocks that will be used to test physical laws, perform relativistic geodesy and substantially improve international timekeeping. 4 MB. JILA SrI optical lattice clock with uncertainty of 2. Tobias Bothwell told Big Think. DOI: 10. (Aug 20, 2020) Published in: Phys. atom-ph], arxiv. Chandler Carreon earned runner-up honours with a time of 01:23:00. 00001: A Wannier-Stark Optical Lattice Clock with Extended Coherence Times Invited Speaker: Tobias Bothwell Tuesday, June 6, 2023Tobias Bothwell is 32 years old and was born on 01/01/1991. Tobias Bothwell. Sterr, F. John M. Fortier,3 A seven-fold improvement in clock stability, reaching for an averaging time in seconds, allows the clock to average to its systematic uncertainty in under 10 min. [4] Collaboration, Boulder Atomic Clock Optical Network BACON. I received the BSc degree in Physics at Tsinghua University, China. Holly Leopardi, Kyle Beloy, Tobias Bothwell et al. Tobias Bothwell, Dhruv Kedar, James K. Ever improving precision and accuracy in atomic clocks are inextricably linked to discovery, with each new decade exploring smaller energy scales. 1: Jason McLeod: 01:08:50: 2: Colin Albert:Tobias Bothwell. This heralds a new regime of clock. Tobias Bothwell at JILA in Boulder, Colorado, and his colleagues separated hundreds of thousands of strontium atoms into “pancake-shaped” blobs of 30 atoms. 120, 103201 (2018). View Tobias Bothwell’s profile on LinkedIn, the world’s largest professional community. Authors: Alexander Aeppli, Anjun Chu, Tobias Bothwell, Colin J. Tobias Bothwell & Colin J. Bromley, Weston L. Rev. "We're talking about measuring a change in how a clock ticks at a level a little larger than a human hair," said Tobias Bothwell, a graduate student in physics at JILA, which is run by the. G. Doug Arno, D. Invited Speakers : Tobias Bothwell, Thomas R Hartke, Aziza Suleymanzade, Hengyun Zhou. T. About IOPscience. DOI: 10. In this week’s issue, Tobias Bothwell, Jun Ye and their colleagues demonstrate this effect at a sub-millimetre scale. Pricing and ordering. 1460-9592. Kennedy & Alexander Aeppli & Dhruv Kedar & John M. Bromley2 ;4, Jwo-Sy Chen 15 6, Jean-Daniel Deschenesˆ 7, Scott A. Robinson & Eric Oelker & Alexander Staron & Jun Ye, 2022. Number 1A, January 2019. December 1562 – November 1612) was Commendator of Kelso Abbey and Coldingham Priory, a Privy Counsellor and Lord High Admiral of Scotland. Kennedy; Jun Ye; Article 16 Feb 2022. Tobias W. Overview. M. See more ideas about wedding, wedding decorations, rustic wedding. We report on an improved systematic evaluation of the JILA SrI optical lattice clock, achieving a nearly identical uncertainty compared to the previous strontium record set by the JILA SrII optical lattice. Room: Ballroom 111 A Chair: Wes Campbell, UCLA. Bodine and Tobias Bothwell and Samuel M. view more. 01052. . Tobias Bothwell (University of Colorado, Boulder) Colin J Kennedy (Quantinuum) John M Robinson (University of Colorado, Boulder) Jun Ye (University of Colorado, Boulder) We report on the experimental progress of the JILA strontium 1D optical lattice clock. Tobias Bothwell, Colin J. Metrologia56, 065004 (2019). Robinson, Eric Oelker, Alexander Staron, Jun Ye. Tobias Bothwell; Xiaogang Zhang; Atomic clocks are vital in a wide array of technologies and experiments, including tests of fundamental physics1. Leopardi, and T. He also has a career high. M. 3 . Edward Marti. 0 × 10 −18. Matei ,2 Thomas Legero,2 Uwe Sterr ,2 Fritz Riehle,2 Holly Leopardi,3 Tara M. Fortier ,. By submitting a comment you agree to abide by our Terms and Community Guidelines. -Recent citations Ultraprecision quantum sensing and measurement based on nonlinear hybrid optomechanical systems. Demonstration of a time scale based on a stable optical carrier William R. 130, 113203 – Published 15 March 2023 Tobias Bothwell1 , Colin J. 11032 Country Dr. Who are Johanna Nyffeler’s colleagues? Some of Johanna Nyffeler’s colleagues are Patrick Hamblin , Ricky Ng ,. Milner, G. The tremendous challenge arises from the fragility of. Here we report a new operational regime for 1D OLCs, both resolving the gravitational redshift across our atomic sample and synchronously Hamiltonian engineering of spin-orbit–coupled fermions in a Wannier-Stark optical lattice clock. Martha I. Diane G. Computational research of phenomena relating to quantum theory, particularly charge transport. Weston L Bromley. Kennedy ,1 Eric Oelker,1,* John M. (Aug 20, 2020) Published in: Phys. Ackerman and James Kevin Schoelz and Tobias Bothwell and Salvador Barraza‐Lopez and Laurent Bellaiche and. Kedar, +5 authors. Twitter Facebook LinkedIn Instagram YouTube Giphy RSS Feed Mailing List. Bothwell. Clocks operating at optical frequencies have. Phys. Bodine,The analysis indicates that this timescale is capable of reaching a stability below 1×10^{-17} after a few months of averaging, making timekeeping at the 10^{-18} level a realistic prospect. Tobias Bothwell; Eric Oelker; View full-text. Tobias Bothwell (JILA, Boulder), Dhruv Kedar (JILA, Boulder) et al. Rev. , J. work in the group of Prof. Q: What are your physics/science interests? I am interested in quantum computing but am still exploring different areas of physics. Their instrument, known as an optical lattice atomic clock, can measureBy using an ultrastable oscillator based on a cryogenic Si cavity, the fractional instability of two Sr optical lattice clocks at 1 s reaches 4. ” Cynthia J Bothwell was born in December, 1961 and is 61 years old now. Robinson,1 Tobias Bothwell,1 Dhruv Kedar,1 William R. Tew1, 2, Jun Ye , and Colin J. Created April 27, 2023, Updated July 3, 2023 HEADQUARTERS 100 [email protected]/s41586-022-05479-2. Kennedy1,2, Alexander Aeppli1, Dhruv Kedar1, John M. Und Jones. In this week’s issue, Tobias Bothwell, Jun Ye and their colleagues demonstrate this effect at a sub-millimetre scale. ; Swann, William C. , 2022. JILA SrI Optical Lattice Clock with Uncertainty of. We present a systematic evaluation of the lattice light shift, a necessary next step for establishing this system as. More information: Tobias Bothwell et al, Resolving the gravitational redshift within a millimeter atomic [email protected]. JILA SrI optical lattice clock with uncertainty of 2. . Request PDF | On Jul 7, 2021, Y. Colin J. Tobias Bothwell, Jun Ye, Evaluation of Lattice Light Shift at Low Uncertainty for a Shallow Lattice Sr Optical Clock , Physical Review Letters, 130, 11, (2023). This includes a novel scheme for taming blackbody radiation-induced frequency shifts through active. Masao Takamoto, Ichiro Ushijima, Noriaki Ohmae,“These aren’t simply calculations,” said Tobias Bothwell (opens in new tab), a physicist at NIST and co-author of an article reporting the experiment published in the journal Nature in 2022. 130, 113203 (2023) – Published 15 March 2023 Show Abstract . We study nonequilibrium magnetization dynamics in an extended two-dimensional (2D) system by loading effective spin-1/2 bosons into a spin-dependent optical lattice and use the lattice to separately control the. Chandrayaan-3 landing ejects 2. William Fulbright College of Arts and Sciences and. JILA endorses the six University nodes' policies for ensuring harassment-free environments. 11032 Country Dr. Science Advances. Rev. Presenting Author: Tobias Bothwell, National Institute of Standards and Technology, Boulder. M John. Augustyn, Sabrina D. . gov (303) 497-3411 Created March 30, 2022, Updated December 9, 2022 HEADQUARTERS 100 Bureau Drive Gaithersburg, MD 20899 301-975-2000. An optical lattice clock based on partially delocalized Wannier-Stark states in. 2022-10-14 | Journal article. Figure 1 (a) An array of three lasers are locked to ultrastable Fabry-Perot resonators. J. An optical lattice clock based on partially delocalized Wannier-Stark states in a gravity-tilted shallow lattice supports superior quantum coherence and adjustable interactions via spin-orbit coupling, thus presenting a powerful spin model realization. Here we operate a network of optical clocks based on 27 Al + (ref. Affiliation 1 Department of Anesthesiology, The University of Missouri, Columbia, MO 65212, USA. We would like to show you a description here but the site won’t allow us. EFTF. Alexander Aeppli1†, Anjun Chu1,2†, Tobias Bothwell1†, Colin J. G. Robinson, Eric Oelker, Alexander Staron, Jun Ye. in Mathematics. Edward Marti,1,2 Andrei Derevianko,3 and Jun Ye1 1JILA, National Institute of Standards and Technology and University of Colorado, Boulder, CO 80309-0440 2Department of Molecular and Cellular Physiology, Tobias Bothwell (University of Colorado, Boulder) Ever improving precision and accuracy in atomic clocks are inextricably linked to discovery, with each new decade exploring smaller energy scales. of Physics, University of Colorado Boulder) Peiru He (JILA, NIST and Dept. 08773 [physics. Lett. Tara Fortier is a group leader in the Time and Frequency Division. 125 (2020) 20, 201302 • e-Print: 2008. With each new decade we gain deeper insight into nature, probing ever smaller energy scales. (Aug 20, 2020) Published in: Phys. Our result is enabled by improving the fractional frequency measurement uncertainty by more than a factor of 10, now reaching 7. tobias. For dominating on-site interactions over the tunnel coupling between lattice. Skyler B. gov (303) 497-3411 Neutral Atom Optical Clocks Group. 125 (2020) 20, 201302 • e-Print: 2008. ORCID record for Uwe Sterr. Jun 6 2023 2:00PM, Tuesday. D. 11. Taking advantage of the high measurement precision offered by an ultrastable laser, we report a spectroscopic observation of SU(N ≤ 10) symmetry in 87 Sr. Bothwell, D. Tobias calls Boulder, CO, home. Thompson, and Jun Yey JILA, National Institute of Standards and Technology and University of Colorado, Department of Physics, Boulder, Colorado 80309, USA (Dated: November 18, 2022) Building scalable quantum systems that demonstrate genuine performance enhancement based onTobias Bothwell [. This improves upon the previous evaluation of the JILA SrI optical lattice clock in 2013, and we achieve a more than twenty-fold reduction. DOI: 10. 0×10−18. PhD thesis, University of Colorado at Boulder. Both students are juniors in the J. Einstein's theory of general relativity states that clocks at different gravitational potentials tick at different rates - an effect known as the gravitational redshift. Clocks operating at optical frequencies have. Show more detail. Bothwell T. Towards this regime, we measure a linear frequency gradient consistent with the gravitational redshift within a single millimetre-scale sample of ultracold strontium. SQuInT is a consortium of universities, national labs, and industrial labs, with concentration in the southwestern United States. Show more detail. Sterr, F. Most recently in the GOJHL with Elmira Sugar Kings. This has motivated the development of atomic clocks with fermionic isotopes. edu. Milner, G. T. Fellow of JILA Fellow of NIST Professor Adjoint, Department of Physics. @article{Oelker2019DemonstrationO4, title={Demonstration of 4. Kennedy1, Dhruv Kedar1, Peiru He1,2, Ana Maria Rey1,2*, Jun Ye1* Engineering a Hamiltonian system with tunable interactions provides opportunities to optimize performance for quantum sensing and explore emerging phenomena of many-body systems. 13 (2019) 714-719 • DOI: 10. (May 29, 2020) e-Print: 2005. Created October 23, 2018, Updated December 8, 2022. “We have seen a shift in the ticking of a clock at a distance around the width of a human hair,” he told Live Science. Tobias Bothwell, Colin J. Blackburn, Loralei G. Edward Marti 1,2, Andrei Derevianko 3, and Jun Ye 1. A Aeppli, A Chu, T Bothwell, CJ Kennedy, D Kedar, P He, AM Rey, J Ye. Eric Oelker. Kennedy,1 Tobias Bothwell,1 Dhruv Kedar,1 Dan G. Authors: Tobias Bothwell, Dhruv Kedar, Eric Oelker, John M. Colin J Kennedy 1 , Eric Oelker 1 , John M Robinson 1 , Tobias Bothwell 1 , Dhruv Kedar 1 , William R Milner 1 , G Edward Marti 1 2 , Andrei Derevianko 3 , Jun Ye 1. Download PDF Abstract: A Wannier-Stark optical lattice clock has demonstrated unprecedented measurement precision for optical atomic clocks. UW Mentor (s): Boris Blinov. Researchers use precise clocks and an extremely stable optical cavity to find new constraints on how the dilaton, a hypothesized dark matter particle, interacts with ordinary matter. Sterr, F. Three recent graduates – Tobias Bothwell, Preston Scrape, and Michael Wyssman; three graduate students – Stephen Bauman, Gage Greening, and Kayla Skinner; and one undergraduate student – Michaela Mertz – received honorable mentions. Former JILA Ph. bothwell [at] nist. Milner,1,* John M. 21: 2022:Authors: Kyungtae Kim, Alexander Aeppli, Tobias Bothwell, Jun Ye. His projects aim at developing and improving optical clocks using quantum metrology techniques. Webmaster | Contact Us | Our Other Offices. Kennedy • e-Print: 2201. Top 5 Men. The researchers use a cloud of ultracold strontium atoms, effectively creating a series of atomic clocks. Colin J. atom-ph],. 0 × 10-18. Previously, Tobias was a Scientific Researcher (Temporary) at Jila and also held positions at University of Colorado Boulder. Do you know Cynthia J Bothwell’s phone number? You can try calling Cynthia’s landline phone at (405) 691-0377 or ring her cell phone at (405) 824-7640 . et al. The collaboration ran clock comparison experiments from November 2017 through to June 2018. Jeff works to maintain and improve NIST systems that produce and distribute official U. Tobias Bothwell, Colin J. Clocks operating at optical frequencies have now. Leopardi, and T. 5 --Frequency Ratio Measurements with 18-digit Accuracy Using a Network of Optical Clocks Boulder Atomic Clock Optical Network (BACON) Collaboration1;2: Kyle Beloy 1, Martha I. 54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics Monday–Friday, June 5–9, 2023; Spokane, WashingtonTobias Bothwell; Colin J. We report. Phot. Bothwell,. Rev. Dr. Age 31 · Oklahoma City, OK . This address also has James Duncan Bothwell and Tobias Bothwell associated with it. We report on the first timescale based entirely on optical technology. 1103/PhysRevLett. The use of tilted optical lattices to manipulate motional degrees of freedom in ultracold gases has been widely reported. Sarah L Robinson. Holly Leopardi 1,2 3 ∗, Kyle Beloy , Tobias Bothwell4,SamuelM Brewer 1 ,5 2, Sarah L Bromley4 6,Jwo-SyChen7 ,ScottADiddams1,2, Robert J Fasano 1,2, Youssef S Hassan ,DavidBHume1, Dhruv Kedar4, Colin J Kennedy 1,4, David R Leibrandt 2, Andrew D Ludlow1, William F McGrew 1 ,2, William R Milner4, Daniele Nicolodi 8 ,420 | Nature | Vol 602 | 17 February 2022 Article Resolving the gravitational redshift across a millimetre-scale atomic sample Tobias Bothwell1 , Colin J.