Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Kennedy, Colin J."'
Autor:
Robinson, John M, Miklos, Maya, Tso, Yee Ming, Kennedy, Colin J., Bothwell, Tobias, Kedar, Dhruv, Thompson, James K., Ye, Jun
Building scalable quantum systems that demonstrate genuine performance enhancement based on entanglement is a major scientific goal for fields including computing, networking, simulations, and metrology. The tremendous challenge arises from the fragi
Externí odkaz:
http://arxiv.org/abs/2211.08621
Autor:
Aeppli, Alexander, Chu, Anjun, Bothwell, Tobias, Kennedy, Colin J., Kedar, Dhruv, He, Peiru, Rey, Ana Maria, Ye, Jun
Engineering a Hamiltonian system with tunable interactions provides opportunities to optimize performance for quantum sensing and explore emerging phenomena of many-body systems. An optical lattice clock based on partially delocalized Wannier-Stark s
Externí odkaz:
http://arxiv.org/abs/2201.05909
Autor:
de Hond, Julius, Xiang, Jinggang, Chung, Woo Chang, Cruz-Colón, Enid, Chen, Wenlan, Burton, William Cody, Kennedy, Colin J., Ketterle, Wolfgang
We observe and study a special ground state of bosons with two spin states in an optical lattice: the spin-Mott insulator, a state that consists of repulsively bound pairs which is insulating for both spin and charge transport. Because of the pairing
Externí odkaz:
http://arxiv.org/abs/2110.00354
Autor:
Bothwell, Tobias, Kennedy, Colin J., Aeppli, Alexander, Kedar, Dhruv, Robinson, John M., Oelker, Eric, Staron, Alexander, Ye, Jun
Publikováno v:
Nature 602, 420 - 424 (2022)
Einstein's theory of general relativity states that clocks at different gravitational potentials tick at different rates - an effect known as the gravitational redshift. As fundamental probes of space and time, atomic clocks have long served to test
Externí odkaz:
http://arxiv.org/abs/2109.12238
Autor:
Kennedy, Colin J., Oelker, Eric, Robinson, John M., Bothwell, Tobias, Kedar, Dhruv, Milner, William R., Marti, G. Edward, Derevianko, Andrei, Ye, Jun
Publikováno v:
Phys. Rev. Lett. 125, 201302 (2020)
We conduct frequency comparisons between a state-of-the-art strontium optical lattice clock, a cryogenic crystalline silicon cavity, and a hydrogen maser to set new bounds on the coupling of ultralight dark matter to Standard Model particles and fiel
Externí odkaz:
http://arxiv.org/abs/2008.08773
Autor:
Bodine, Martha I., Deschênes, Jean-Daniel, Khader, Isaac H., Swann, William C., Leopardi, Holly, Beloy, Kyle, Bothwell, Tobias, Brewer, Samuel M., Bromley, Sarah L., Chen, Jwo-Sy, Diddams, Scott A., Fasano, Robert J., Fortier, Tara M., Hassan, Youssef S., Hume, David B., Kedar, Dhruv, Kennedy, Colin J., Koepke, Amanda, Leibrandt, David R., Ludlow, Andrew D., McGrew, William F., Milner, William R., Nicolodi, Daniele, Oelker, Eric, Parker, Thomas E., Robinson, John M., Romish, Stefania, Schäffer, Stefan A., Sherman, Jeffrey A., Sonderhouse, Lindsay, Yao, Jian, Ye, Jun, Zhang, Xiaogang, Newbury, Nathan R., Sinclair, Laura C.
Publikováno v:
Phys. Rev. Research 2, 033395 (2020)
We use frequency comb-based optical two-way time-frequency transfer (O-TWTFT) to measure the optical frequency ratio of state-of-the-art ytterbium and strontium optical atomic clocks separated by a 1.5 km open-air link. Our free-space measurement is
Externí odkaz:
http://arxiv.org/abs/2006.01306
Autor:
Network, Boulder Atomic Clock Optical, Collaboration, Beloy, Kyle, Bodine, Martha I., Bothwell, Tobias, Brewer, Samuel M., Bromley, Sarah L., Chen, Jwo-Sy, Deschênes, Jean-Daniel, Diddams, Scott A., Fasano, Robert J., Fortier, Tara M., Hassan, Youssef S., Hume, David B., Kedar, Dhruv, Kennedy, Colin J., Khader, Isaac, Koepke, Amanda, Leibrandt, David R., Leopardi, Holly, Ludlow, Andrew D., McGrew, William F., Milner, William R., Newbury, Nathan R., Nicolodi, Daniele, Oelker, Eric, Parker, Thomas E., Robinson, John M., Romisch, Stefania, Schäffer, Stefan A., Sherman, Jeffrey A., Sinclair, Laura C., Sonderhouse, Lindsay, Swann, William C., Yao, Jian, Ye, Jun, Zhang, Xiaogang
Atomic clocks occupy a unique position in measurement science, exhibiting higher accuracy than any other measurement standard and underpinning six out of seven base units in the SI system. By exploiting higher resonance frequencies, optical atomic cl
Externí odkaz:
http://arxiv.org/abs/2005.14694
Autor:
Milner, William R., Robinson, John M., Kennedy, Colin J., Bothwell, Tobias, Kedar, Dhruv, Matei, Dan G., Legero, Thomas, Sterr, Uwe, Riehle, Fritz, Leopardi, Holly, Fortier, Tara M., Sherman, Jeffrey A., Levine, Judah, Yao, Jian, Ye, Jun, Oelker, Eric
Publikováno v:
Phys. Rev. Lett. 123, 173201 (2019)
We demonstrate a time scale based on a phase stable optical carrier that accumulates an estimated time error of $48\pm94$ ps over 34 days of operation. This all-optical time scale is formed with a cryogenic silicon cavity exhibiting improved long-ter
Externí odkaz:
http://arxiv.org/abs/1907.03184
Autor:
Bothwell, Tobias, Kedar, Dhruv, Oelker, Eric, Robinson, John M., Bromley, Sarah L., Tew, Weston L., Ye, Jun, Kennedy, Colin J.
We report on an improved systematic evaluation of the JILA SrI optical lattice clock, achieving a nearly identical systematic uncertainty compared to the previous strontium accuracy record set by the JILA SrII optical lattice clock (OLC) at $2.1 \tim
Externí odkaz:
http://arxiv.org/abs/1906.06004
Autor:
Burton, William Cody, Kennedy, Colin J., Chung, Woo Chang, Vadia, Samarth, Chen, Wenlan, Ketterle, Wolfgang
Publikováno v:
Phys. Rev. Lett. 117, 275301 (2016)
We demonstrate a new way to extend the coherence time of separated Bose-Einstein condensates that involves immersion into a superfluid bath. When both the system and the bath have similar scattering lengths, immersion in a superfluid bath cancels out
Externí odkaz:
http://arxiv.org/abs/1610.08418