Perspectives on Quantum Sensing and Computation for Particle Physics

Europe/Zurich
Zoom Only (CERN)

Zoom Only

CERN

Dorota Maria Grabowska (CERN), John March-Russell (University of Oxford (GB)), Karl Jansen (DESY), Matthew Philip Mccullough (CERN), Michael Doser (CERN), Simon Knapen (CERN), Sofia Vallecorsa (CERN), Stefano Carrazza (CERN)
Description

The focal point of this two-week CERN TH Institute is the rapidly advancing field of quantum technology and, in particular, the role this technology plays in particle physics. The first week focuses on quantum sensing, covering both the theoretical and experimental landscape. The second week focuses on quantum computing, including development in simulation methods and algorithms, applications to both high and low energy particle physics and current hardware capabilities and limitations. The workshop will be held virtually, with two or three talks in the late afternoon and early evening, CET time. There will also be the possibility of continuing discussion in-between talks. 

TH workshop secretariat
Registration
Registration Form
Participants
Zoom Meeting ID
63723882031
Host
Elena Gianolio
Passcode
43147514
Useful links
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    • 15:00 16:00
      Coherent-Field Dark Matter: Candidates and Search Methods 1h
      Speaker: Andreas Ringwald (Deutsches Elektronen-Synchrotron DESY)
    • 16:30 17:30
      Searching for Dark States with Nonlinear Optics 1h
      Speaker: Roni Harnik (Fermilab)
    • 18:00 19:00
      Fundamental tests of Quantum Mechanics 1h
      Speaker: Angelo Bassi (Department of Physics - University of Trieste)
    • 15:00 16:00
      Quantum Metrology Assisted Experiments at the Antiproton Decelerator Facility of CERN 1h
      Speaker: Stefan Ulmer (RIKEN (JP))
    • 16:30 17:30
      Direct detection of light dark matter with quantum materials and sensors 1h
      Speaker: Tongyan Lin
    • 18:00 19:00
      Quantum sensitivity limits of nuclear magnetic resonance searches for axion-like dark matter 1h
      Speaker: Alex Sushkov (Boston University)
    • 15:00 16:00
      Optimal metrology with variational quantum circuits on trapped ions: theory and experiment 1h
      Speakers: Christian Marciniak (University Innsbruck), Raphael Kaubruegger
    • 16:30 17:30
      The piezoaxionic effect 1h
      Speaker: Asimina Arvanitaki (PI - Perimeter Institute for Theoretical Physics (CA))
    • 18:00 19:00
      Navigating Quantum Systems to Detect Ultra-Cold Neutrinos from the Big Bang 1h
      Speaker: Chris Tully (Princeton University (US))
    • 15:00 16:00
      Atom Interferometry with MAGIS-100 and AION 1h
      Speaker: Jeremiah Mitchell (University of Cambridge)
    • 16:30 17:30
      Quantum sensors from the tabletop to the Universe 1h
      Speaker: Jonathan R. Ellis (University of London (GB))
    • 18:00 19:00
      Particle Physics Circa 2021 1h
      Speaker: Savas Dimopoulos (Unknown)
    • 14:50 15:00
      Welcome 10m
      Speaker: Dorota Maria Grabowska (CERN)
    • 16:30 17:30
      Quantum simulation for nuclear physics 1h

      A vigorous program has formed in recent years in various physics disciplines to take advantage of near-term and future quantum-simulation and quantum-computing hardware to study complex quantum many-body systems, building upon the vision of Richard Feynman. Such activities have also started in nuclear physics, hoping to bring new and powerful experimental and computational tools to address a range of challenging problems in strongly interacting nuclear many-body systems. In this talk, I review a number of important developments, including proposals for simulating strongly interacting quantum field theories, and for quantum computations of hadron and nuclear structure. The hardware technologies that are expected to enable both the analog simulations and the digital quantum computations of these problems will be enumerated, and the case for hardware co-design in the upcoming years will be motivated.

      Speaker: Zohreh Davoudi
    • 18:00 19:00
      Measurement-based eigensolvers for problems in high energy physics 1h

      Variational quantum eigensolvers (VQEs) combine classical optimization with efficient cost function evaluations on quantum computers. We propose a new approach to VQEs using the principles of measurement-based quantum computation. This strategy uses entangled resource states and local measurements. We present two measurement-based VQE schemes. The first introduces a new approach for constructing variational families. The second provides a translation of circuit-based to measurement-based schemes. For each scheme, we provide an application in high energy physics, namely the Schwinger model and Z_2 lattice gauge theory.

      Speaker: Luca Dellantonio
    • 15:00 16:00
      Dimensional Expressivity Analysis of Parametric Quantum Circuits 1h

      Parametric quantum circuits play a crucial role in the performance of many variational quantum algorithms. To successfully implement such algorithms, one must design efficient quantum circuits that sufficiently approximate the solution space while maintaining a low parameter count and circuit depth. In this talk, we present a method to analyze the dimensional expressivity of parametric quantum circuits. This technique allows for identifying superfluous parameters in the circuit layout and for obtaining a maximally expressive ansatz with a minimum number of parameters. Using a hybrid quantum-classical approach, we show how to efficiently implement the expressivity analysis using quantum hardware, and we provide a proof of principle demonstration of this procedure on IBM's quantum hardware. We also discuss the effect of symmetries and demonstrate how to incorporate or remove symmetries from the parametrized ansatz.

      Speaker: Lena Funcke (Perimeter Institute)
    • 16:30 17:30
      High-energy physics at ultracold temperatures – quantum simulation of lattice gauge theories with cold atoms 1h

      Despite the importance of gauge theories for modern physics, solving their out-of-equilibrium dynamics on classical computers is extremely challenging. This difficulty is currently stimulating a worldwide effort to implement them in dedicated quantum simulators.

      In this talk, I will discuss recent progress towards quantum simulation of gauge theories using ultracold atoms. I will show recent breakthroughs to overcome the main challenge, the realization of a dynamics that respects gauge symmetry. In particular, I will present a recent experiment based on engineering of suitable energy penalties in an optical lattice, which has realized a many-body gauge theory in a 71-site Hubbard model and has certified the fulfilment of Gauss’s law for the first time. Further, I will discuss recent progress in understanding gauge breaking errors in this and related models as well as possibilities to mitigate them.

      I will also illustrate some of the fascinating physics attainable in quantum simulators of gauge theories even for simple target models and with realistic resources, such as dynamical topological quantum phase transitions. Finally, I will discuss the state of art and common issues of gauge quantum simulation, and thus aim at outlining a roadmap towards mature and practically relevant quantum simulation of gauge theories.

      Speaker: Philipp Hauke
    • 15:00 16:00
      Cold atoms meet lattice gauge theory 1h

      The central idea of this review talk is to consider quantum field theory models relevant for particle physics and replace the fermionic matter in these models by a bosonic one. This is mostly motivated by the fact that bosons are more "accessible"' and easier to manipulate for experimentalists, but this "substitution'" also leads to new physics and novel phenomena. It allows us to gain new information about among other things confinement and the dynamics of the deconfinement transition. We will thus consider bosons in dynamical lattices corresponding to the bosonic Schwinger or Z2 Bose-Hubbard models. Another central idea of this review concerns atomic simulators of paradigmatic models of particle physics theory such as the Creutz-Hubbard ladder, or Gross-Neveu-Wilson and Wilson-Hubbard models. Finally, we will briefly describe our efforts to design experimentally friendly simulators of these and other models relevant for particle physics.

      Speaker: Maciej Lewenstein
    • 16:30 17:30
      3D-integrated superconducting quantum circuits 1h
      Speaker: Peter Leek (University of Oxford)
    • 15:00 16:00
      Application of Quantum Machine Learning to High Energy Physics Analysis at the LHC using Quantum Computer Simulators and Hardware 1h
      Speaker: Sau Lan Wu (University of Wisconsin Madison (US))
    • 16:30 17:30
      Quantum Computing for High Energy Colliders 1h
      Speaker: Christian Walter Bauer (Lawrence Berkeley National Lab. (US))
    • 18:00 19:00
      Noisy Intermediate-Scale Quantum algorithms 1h

      A universal fault-tolerant quantum computer that can solve efficiently problems such as integer factorization and unstructured database search requires millions of qubits with low error rates and long coherence times. While the experimental advancement towards realizing such devices will potentially take decades of research, noisy intermediate-scale quantum (NISQ) computers already exist. These computers are composed of hundreds of noisy qubits, i.e. qubits that are not error-corrected, and therefore perform imperfect operations in a limited coherence time. In the search for quantum advantage with these devices, algorithms have been proposed for applications in various disciplines spanning physics, machine learning, quantum chemistry and combinatorial optimization. The goal of such algorithms is to leverage the limited available resources to perform classically challenging tasks. In this talk, I provide an overview of NISQ algorithms, their limitations and potential advantages.

      Speaker: Alba Cervera-Lierta
    • 15:00 16:00
      Towards simulating 2D effects in lattice gauge theories on a quantum computer 1h
      Speaker: Christine Muschik (University of Waterloo)
    • 16:30 17:30
      Quantum Gravity in the Lab 1h
      Speaker: Adam Brown
    • 18:00 19:00
      Thoughts about the Interface 1h
      Speaker: Martin Savage (Institute for Nuclear Theory)