APC colloquium

APC Colloquium : Quantum Sensors for High Energy Physics

While Quantum 1.0 technologies have already been used to great effect in high energy physics applications such as rare event dark matter searches, the next generation of experiments will make use of new Quantum 2.0 sensing technologies such as squeezing and initial state preparation using non-Gaussian resources.   Rudimentary qubit-based quantum processors are being deployed as the front end electronics to manipulate and detect signals at the single quantum level with readout noise far below the standard quantum limit of zero-point vacuum fluctuations.  In this talk, I will give an overview of

Colloquium APC: Constraining Cosmic Inflation in Model Space

Cosmic Inflation, the currently favoured physical mechanism at the origin of structures in our universe, can be realised in many ways, ranging from modified gravity to string-theoretical constructions. However, up to now, its simplest incarnations, made of a scalar field slow-rolling a plateau-like potential, have passed all the observational tests. Will these models be confirmed by the upcoming Euclid and other large-scale structure surveys?

Colloquium APC: "LHCb SMOG: a Fixed Target program at the CERNLarge Hadron Collider"

The LHCb experiment at the CERN Large Hadron Collider (LHC) has the unique capability to function simultaneously as both a collider experiment and the highest-energy fixed-target experiment ever created. By injecting gas into the LHC beam pipe near the LHCb interaction point while proton or ion beams are circulating, fixed target proton-nucleus (pA) and nucleus-nucleus (AB) collisions are produced in an interesting and little-explored kinematic phase space. The ability to inject multiple gas species enables the collection of various pA and AB datasets of relevance to fields ranging from astroparticle physics to heavy-ion and QCD physics. In this talk, I will discuss recent results from the successful fixed-target program at LHCb, known as SMOG, during the LHC Run 2. I will also discuss the current status and performance of LHCb’s fixed-target upgrade for Run 3, SMOG2.

Colloquium APC: "Forging the Future of CERN: a view from the Council"

The Council of CERN is responsible for formulating the scientific and financial policy of CERN. It does this with strong coordination with the CERN Director General and Management.

I will describe how the CERN Council reaches its decision in general and the process this year that had led to initiating the Fourth European Strategy Group for Particle Physics.

Radio Supernova remnants: Echoes of stellar explosions

Supernova remnants (SNRs), the relics of stellar explosions, are among the most significant sources of non-thermal radio emission in the universe. As the shock fronts created by the supernova expand, they compress and distort the ambient matter and magnetic fields, producing energetic particles via diffusive shock acceleration. This talk undertakes a journey to uncover the multifaceted nature of SNRs through the lens of radio astronomy.

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