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SUMMARY:PChem Seminar by Brandon Furey\, University of Innsbruck
DTSTART:20240408T170000
DTEND:20240408T183000
DTSTAMP:20260916T203831Z
UID:44c9a30274dcc6979d055b96012f352bd632b3fbadb60883b5ac3f05
CATEGORIES:Conferences - Seminars
DESCRIPTION:Brandon Furey\, Quantum Physics Postdoc\, Institute for Experi
 mental Physics\, University of Innsbruck\n\n\n«  Toward precision spect
 roscopy and quantum information with trapped molecular ions »\nBrandon F
 urey\, Institute for Experimental Physics\, University of Innsbruck\n\n\n\
 n \nAbstract\n \n\n\n\n\nThe quantum molecules group at Universität Inn
 sbruck is developing an experimental system which utilizes a range of adva
 nces in molecular spectroscopy and quantum logic spectroscopy (QLS) to stu
 dy molecular rovibronic structure and explore quantum information (QI) in 
 trapped molecules. The efforts of our group are divided into four projects
 . The first project involved using the capable platform we have developed 
 to measure one- and two-photon dissociation cross section spectra of singl
 e trapped CaOH+ molecular ions.[1] The second utilizes Raman rotational co
 ntrol using a CW laser and frequency comb for precision rotational spectro
 scopy and to explore applications in QI. Novel QI encoding schemes are pos
 sible in rotational states of molecules which are not available in atoms.[
 2][3] We are developing a sequential quantum error correction protocol as 
 well as a continuous dissipative error correction scheme to stabilize a ro
 tational superposition in a heteronuclear linear rotor against blackbody r
 adiation and spontaneous decay. We aim to demonstrate state preparation\, 
 coherent control\, and creation of superpositions of rotational states in 
 CaH+ or CaOH+.[4] The third project is pump-probe recoil spectroscopy\, wh
 ere we aim to measure vibrational population dynamics of single molecular 
 ions by mapping them to the electronic state of an atomic ion via QLS.[5] 
 The fourth project focuses on state-dependent force spectroscopy\, where a
 n optical tweezer generates a state-dependent force on a trapped molecular
  ion. This enables quantum non-demolition measurements of the rovibrationa
 l structure.[6]\n\n\n\n\n\n\nReferences \n[1] Z. Wu\, S. Walser\, V. Podl
 esnic\, M. Isaza-Monsalve\, E. Mattivi\, G. Mu\, R. Nardi\, B.J. Furey\, P
 . Schindler\, arXiv:2401.10854 [physics.atom-ph] (2024)\n[2] V. Albert\, 
 J. Covey\, J. Preskill\, Phys. Rev. X 10 031050 (2020)\n[3] S. Jain\, E.
  Hudson\, W. Campbell\, V. Albert\, arXiv:2311.1234 [quant-phy] (2023)\n[
 4] C. Chou\, A. Collopy\, C. Kurz\, Y. Lin\, M. Harding\, P. Plessow\, T. 
 Fortier\, S. Diddams\, D. Leibfried\, D. Leibrandt\, Science 3671458-146
 1 (2020)\n[5] P. Schindler\, New J. Phys. 21 083025 (2019)\n[6] K. Najaf
 ian\, Z. Meir\, M. Sinhal\, Stefan Willitsch\, Nat. Commun. 11 4470 (202
 0)\n\n 
LOCATION:CH G1 495 https://plan.epfl.ch/?room==CH%20G1%20495
STATUS:CONFIRMED
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