Zobrazeno 1 - 10
of 372
pro vyhledávání: '"Wiseman, Howard. M."'
Autor:
Angulo, Daniela, Thompson, Kyle, Nixon, Vida-Michelle, Jiao, Andy, Wiseman, Howard M., Steinberg, Aephraim M.
When a pulse of light traverses a material, it incurs a time delay referred to as the group delay. Should the group delay experienced by photons be attributed to the time they spend as atomic excitations? However reasonable this connection may seem,
Externí odkaz:
http://arxiv.org/abs/2409.03680
Autor:
Villegas-Aguilar, Luis, Wang, Yuanlong, Pepper, Alex, Baker, Travis J., Pryde, Geoff J., Slussarenko, Sergei, Tischler, Nora, Wiseman, Howard M.
A central requirement in asymmetric quantum nonlocality protocols, such as quantum steering, is the precise reconstruction of state assemblages -- statistical ensembles of quantum states correlated with remote classical signals. Here we introduce a g
Externí odkaz:
http://arxiv.org/abs/2408.15576
Theoretical tools used in processing continuous measurement records from real experiments to obtain quantum trajectories can easily lead to numerical errors due to a non-infinitesimal time resolution. In this work, we propose a systematic assessment
Externí odkaz:
http://arxiv.org/abs/2408.14105
Publikováno v:
Physical Review A 108, 012216 (2023)
Quantum steering is the phenomenon whereby one party (Alice) proves entanglement by "steering'' the system of another party (Bob) into distinct ensembles of states, by performing different measurements on her subsystem. Here, we investigate steering
Externí odkaz:
http://arxiv.org/abs/2404.02725
Interferometric phase estimation is an essential tool for precise measurements of quantities such as displacement, velocity and material properties. The lower bound on measurement uncertainty achievable with classical resources is set by the shot-noi
Externí odkaz:
http://arxiv.org/abs/2402.19079
Autor:
Thompson, Kyle, Li, Kehui, Angulo, Daniela, Nixon, Vida-Michelle, Sinclair, Josiah, Sivakumar, Amal Vijayalekshmi, Wiseman, Howard M., Steinberg, Aephraim M.
When a single photon traverses a cloud of 2-level atoms, the average time it spends as an atomic excitation -- as measured by weakly probing the atoms -- can be shown to be the spontaneous lifetime of the atoms multiplied by the probability of the ph
Externí odkaz:
http://arxiv.org/abs/2310.00432
Autor:
Pepper, Alex, Baker, Travis. J., Wang, Yuanlong, Song, Qiu-Cheng, Shalm, Lynden. K., Varma, Varun. B., Nam, Sae Woo, Tischler, Nora, Slussarenko, Sergei, Wiseman, Howard. M., Pryde, Geoff. J.
The distribution and verification of quantum nonlocality across a network of users is essential for future quantum information science and technology applications. However, beyond simple point-to-point protocols, existing methods struggle with increa
Externí odkaz:
http://arxiv.org/abs/2308.02296
Publikováno v:
PRX Quantum 4, 040340 (2023)
State smoothing is a technique to estimate a state at a particular time, conditioned on information obtained both before (past) and after (future) that time. For a classical system, the smoothed state is a normalized product of the $\textit{filtered
Externí odkaz:
http://arxiv.org/abs/2305.12970
The Wigner's friend thought experiment has gained a resurgence of interest in recent years thanks to no-go theorems that extend it to Bell-like scenarios. One of these, by us and co-workers, showcased the contradiction that arises between quantum the
Externí odkaz:
http://arxiv.org/abs/2305.09102
Publikováno v:
New J. Phys. 25 (2023) 053005
As originally introduced, the EPR phenomenon was the ability of one party (Alice) to steer, by her choice between two measurement settings, the quantum system of another party (Bob) into two distinct ensembles of pure states. As later formalized as a
Externí odkaz:
http://arxiv.org/abs/2212.10825