Skip to main content

2020 03 11 : Condensed Matter Seminar : Collective excitations as quantum sensors for fundamental physics

Collective excitations as quantum sensors for fundamental physics

  • Date11 Mar 2020
  • Time 15:30 - 16:30
  • Category Seminar

Prof. Ivette Fuentes (University of Nottingham, University of Vienna and Penrose Institute)

Quantum sensors that are used to measure gravitational fields and detect dark energy typically use single particle interferometric techniques that are limited by the time of flight in the interferometer arm.  In this talk I will present a new detection method that uses quantum resonances and the sensitivity of collective excitations (phonons) to gravitational fields. When phonons in a Bose-Einstein condensate are initially prepared in a squeezed state, spacetime distortions can create additional excitations through parametric amplification. This effect can be used to detect gravitational waves at high frequencies. We have also developed a phonon based scheme to estimate spacetime parameters, miniaturize devices to measure gravitational fields and gradients and set further constrains on dark matter/energy models.

 

Location: Shilling LT

Related topics

Explore Royal Holloway

Arrivals Sept 2017 77 1.jpg

Get help paying for your studies at Royal Holloway through a range of scholarships and bursaries.

clubs-societies_REDUCED.jpg

There are lots of exciting ways to get involved at Royal Holloway. Discover new interests and enjoy existing ones.

Accommodation home hero

Heading to university is exciting. Finding the right place to live will get you off to a good start.

Support and wellbeing 2022 teaser.jpg

Whether you need support with your health or practical advice on budgeting or finding part-time work, we can help.

Founders, clock tower, sky, ornate

Discover more about our academic departments and schools.

REF_2021.png

Find out why Royal Holloway is in the top 25% of UK universities for research rated ‘world-leading’ or ‘internationally excellent’.

Immersive Technology

Royal Holloway is a research intensive university and our academics collaborate across disciplines to achieve excellence.

volunteering 10th tenth Anniversary Sculpture - research.jpg

Discover world-class research at Royal Holloway.

First years Emily Wilding Davison Building front view

Discover more about who we are today, and our vision for the future.

RHC PH.100.1.3 Founders south east 1886.w

Royal Holloway began as two pioneering colleges for the education of women in the 19th century, and their spirit lives on today.

Notable alumni Kamaladevi Chattopadhyay

We’ve played a role in thousands of careers, some of them particularly remarkable.

Governance

Find about our decision-making processes and the people who lead and manage Royal Holloway today.