Applied Physics Seminar

***Refreshments at 3:45pm outside Noyes 147

Abstract:

Recent advances integrating both natural and artificial emitters with waveguides—enabled by microwave metamaterials [1], dielectric photonic crystals [2], and matter waves [3]—have established waveguide QED as a robust platform for developing next-generation quantum technologies. These configurations offer unique capabilities for engineering photon-mediated interactions that have no analogue in other platforms, including chiral dissipative interactions [4] and tunable-range interactions [5].

In this talk, I will present methods to leverage chiral dissipative interactions in multi-mode waveguides [4] to implement a deterministic controlled-phase gate between photons [6]. I will also explore how the dynamic control of interaction range and strength in waveguide-mediated setups can be used to generate highly entangled many-body spin states [7]

[1] Phys. Rev. X 12, 031036 (2022);, Science 379, 278 (2023).
[2] Science, 379, 6630, pp. 389-393 (2023); Phys. Rev. X 11, 031021 (2021); . Phys. Rev. Lett. 124, 063602 (2020)
[3] Nature 559, 589–592 (2018).
[4] Phys. Rev. Research 5, 023031 (2023)
[5] Nat. Photonics 9 (5), 320-325, 326-331 (2015).
[6] arXiv:2405.10176
[7] Phys. Rev. Lett. 131, 073602 (2023)

More about the Speaker:

I graduated in Universidad Autónoma de Madrid in 2008, and did both the Master (2009) and PhD studies (2009-2013) in the Theoretical Condensed Matter department of Universidad Autónoma de Madrid under the supervision of Prof. Carlos Tejedor. After that I moved to the Theory Division of the Max Planck Institute of Quantum Optics, led by Prof. J. I. Cirac, as a post-doctoral researcher where I spent 5 years. Since August 2018, I am a permanent Research Scientist, affiliated to the Quantum Information and Foundation group (QUINFOG) at the Institute of Fundamental Physics (IFF) of the Spanish Research Council (CSIC).