Zobrazeno 1 - 10
of 63
pro vyhledávání: '"I. B. Spielman"'
Autor:
Emine Altuntaş, I. B. Spielman
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-9 (2023)
Back-action limited measurements of many-body quantum systems are a challenging topic of relevance to open quantum systems and quantum metrology. This work makes important contributions in that direction by experimentally measuring and theoretically
Externí odkaz:
https://doaj.org/article/1de0eebd1210432aa7de83c0d1e439e4
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-9 (2021)
Abstract Quantum states can acquire a geometric phase called the Berry phase after adiabatically traversing a closed loop, which depends on the path not the rate of motion. The Berry phase is analogous to the Aharonov–Bohm phase derived from the el
Externí odkaz:
https://doaj.org/article/332334fc49c94d3d845126aa1f0f09db
Autor:
Emine Altuntaş, I. B. Spielman
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p 023185 (2023)
Ultracold atoms are an ideal platform for understanding system-reservoir dynamics of many-body systems. Here, we study quantum back-action in atomic Bose-Einstein condensates, weakly interacting with a far-from resonant, i.e., dispersively interactin
Externí odkaz:
https://doaj.org/article/2e0d028643cd4b7fa019df0ff72d0f6a
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Here, the authors study topology in spin-orbit coupled 87Rb atoms by using time domain spectroscopy and quantum state tomography. They measure full quantum state to extract the Berry phase of the system and show signatures of a half-integer Chern ind
Externí odkaz:
https://doaj.org/article/f892a2c85ac64e1294943c0904069c0b
Combining machine learning with physics: A framework for tracking and sorting multiple dark solitons
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023163 (2022)
In ultracold-atom experiments, data often comes in the form of images which suffer information loss inherent in the techniques used to prepare and measure the system. This is particularly problematic when the processes of interest are complicated, su
Externí odkaz:
https://doaj.org/article/c498f9dbb5094965b8ea054fbd54a3f0
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043075 (2021)
The implementation of a combination of continuous weak measurement and classical feedback provides a powerful tool for controlling the evolution of quantum systems. In this paper, we investigate the potential of this approach from three perspectives.
Externí odkaz:
https://doaj.org/article/5e49021bd89840809667a74b7e1ee9b2
Autor:
Emine Altuntaş, I. B. Spielman
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043087 (2021)
High-resolution imaging of ultracold atoms typically requires custom high numerical aperture (NA) optics, as is the case for quantum gas microscopy. These high NA objectives involve many optical elements, each of which contributes to loss and light s
Externí odkaz:
https://doaj.org/article/8af921f6dfe64971a14a06984505e1fc
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023058 (2021)
We quantum simulated the 2D Harper-Hofstadter (HH) lattice model in a highly elongated tube geometry—three sites in circumference—using an atomic Bose-Einstein condensate. In addition to the usual transverse (out-of-plane) magnetic flux, piercing
Externí odkaz:
https://doaj.org/article/10604881b2f543a3906d658900aa0b2f
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043325 (2020)
Weak measurement in tandem with real-time feedback control is a new route toward engineering novel nonequilibrium quantum matter. Here we develop a theoretical toolbox for quantum feedback control of multicomponent Bose-Einstein condensates (BECs) us
Externí odkaz:
https://doaj.org/article/408ab7a228b54bb195ebb88907adfb11
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Phases of matter are characterized by order parameters describing the type and degree of order in a system. Here, the authors explore the magnetic phases and the phase transitions present in a near-zero temperature spin-1 spin-orbit-coupled Bose gas,
Externí odkaz:
https://doaj.org/article/852ad190d7934ac4898ff86f0fdc9489