Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Athreya Shankar"'
Autor:
Samarth Hawaldar, Prakriti Shahi, Allison L. Carter, Ana Maria Rey, John J. Bollinger, Athreya Shankar
Publikováno v:
Physical Review X, Vol 14, Iss 3, p 031030 (2024)
Trapped-ion systems are a leading platform for quantum information processing, but they are currently limited to 1D and 2D arrays, which imposes restrictions on both their scalability and their range of applications. Here, we propose a path to overco
Externí odkaz:
https://doaj.org/article/9686855cc10c43fb99cab8d5d874b543
Publikováno v:
PRX Quantum, Vol 4, Iss 2, p 020333 (2023)
We study multiparameter sensing of two-dimensional (2D) and three-dimensional (3D) vector fields within the Bayesian framework for SU(2) quantum interferometry. We establish a method to determine the optimal quantum sensor, which establishes the fund
Externí odkaz:
https://doaj.org/article/646f5965d4ac49fdac304adc0775037c
Autor:
Athreya Shankar, Emil A. Yuzbashyan, Victor Gurarie, Peter Zoller, John J. Bollinger, Ana Maria Rey
Publikováno v:
PRX Quantum, Vol 3, Iss 4, p 040324 (2022)
Two-dimensional p+ip superconductors and superfluids are systems that feature chiral behavior emerging from the Cooper pairing of electrons or neutral fermionic atoms with nonzero angular momentum. Their realization has been a longstanding goal becau
Externí odkaz:
https://doaj.org/article/814de9d54f4c4c028e0873937d428c47
Autor:
Allison L. Carter, Sean R. Muleady, Athreya Shankar, Jennifer F. Lilieholm, Bryce B. Bullock, Matthew Affolter, Ana Maria Rey, John J. Bollinger
Publikováno v:
Physical Review A. 107
Penning traps have been used for performing quantum simulations and sensing with hundreds of ions and provide a promising route toward scaling up trapped ion quantum platforms because of the ability to trap and control up to thousands of ions in 2D a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::084dfd96496e3c8bd2adcb13cf994a46
https://doi.org/10.1103/physreva.107.042618
https://doi.org/10.1103/physreva.107.042618
Autor:
Athreya, Shankar, Chen, Tang, Matthew, Affolter, Kevin, Gilmore, Daniel H E, Dubin, Scott, Parker, Murray J, Holland, John J, Bollinger
Publikováno v:
Phys Rev A (Coll Park)
Two-dimensional crystals of ions stored in Penning traps are a leading platform for quantum simulation and sensing experiments. For small amplitudes, the out-of-plane motion of such crystals can be described by a discrete set of normal modes called t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1440c5d678f0112b4c6a2cecf814185e
https://pubmed.ncbi.nlm.nih.gov/35024525
https://pubmed.ncbi.nlm.nih.gov/35024525
Autor:
Chen Tang, Daniel H. E. Dubin, Dominic Meiser, Athreya Shankar, John J. Bollinger, Scott Parker
Publikováno v:
Physical Review A. 104
Planar thermal equilibration is studied using direct numerical simulations of ultracold two-dimensional ion crystals in a Penning trap with a rotating wall. The large magnetic field of the trap splits the modes that describe in-plane motion of the io
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f9c3048b065415dea571d40bd7ef316
https://doi.org/10.1103/physreva.104.023325
https://doi.org/10.1103/physreva.104.023325
Autor:
Steven Touzard, Simon B. Jäger, Travis Nicholson, X. J. Yu, Murray Holland, Haonan Liu, Athreya Shankar
Publikováno v:
Physical Review Letters. 125
We propose a new type of superradiant laser based on a hot atomic beam traversing an optical cavity. We show that the theoretical minimum linewidth and maximum power are competitive with the best ultracoherent clock lasers. Also, our system operates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a91694991041355072b5fdc5ecaf4ee
https://doi.org/10.1103/physrevlett.125.253602
https://doi.org/10.1103/physrevlett.125.253602
Regular and bistable steady-state superradiant phases of an atomic beam traversing an optical cavity
We investigate the different photon emission regimes created by a preexcited and collimated atomic beam passing through a single mode of an optical cavity. In the regime where the cavity degrees of freedom can be adiabatically eliminated, we find tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3895b6fd83b9ad76f15573dde18c8ba
http://arxiv.org/abs/2009.05648
http://arxiv.org/abs/2009.05648
Publikováno v:
Physical Review Letters. 122
We propose a scheme for continuously measuring the evolving quantum phase of a collective spin composed of $N$ pseudospins. Quantum non-demolition measurements of a lossy cavity mode interacting with an atomic ensemble are used to directly probe the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dbaea02f57d40299e8ac4acf00407a3
https://doi.org/10.1103/physrevlett.122.233602
https://doi.org/10.1103/physrevlett.122.233602