About the Project
The ability to control the motion of nano-scale using light, the field of optomechanics, is one of the fastest growing fields in experimental quantum physics. Large, vibrating quantum objects can be used to store and convert delicate quantum signals. These devices are limited since they lose energy into their surroundings as they vibrate.
To overcome this limitation, we levitate the object, such that it vibrates in a vacuum and does not lose energy. This could even allow one to produce quantum superposition states with massive particles, testing the very limits of quantum physics. Standard experiments levitate particles using light, which leads to new limitations, as nano-objects interact with light in a complex way.
This Ph. D. project will explore a new platform for working with levitated nanoparticles, where electric fields are used to levitated a charged particle, which can then be coupled to, and controlled by, circuits. The potential is to create an electrically networked device for application in technology and for testing fundamental physics.
The project will involve:
• Building the apparatus to trap charged nanoparticles, and to control their charge.
• Exploring methods to cool and control the motion of trapped nanoparticles, including circuit design and theoretical modelling.
• Characterization of the system as a sensing device and general data analysis.
• Work with theorists to explore the potential quantum applications of the experiment.
• Work with other partners to explore miniaturising technologically developing the experiment.
• Attendance of international conferences, workshops, summer schools etc.
Do not hesitate to contact Dr. Millen with further questions [Email Address Removed]
Eligibility
This studentship is open UK residents, who are eligible for a full award (fees plus stipend).
Candidate Requirements
Prospective candidates will be judged according to how well they meet the following criteria:
• A first -class honours degree to second class honours upper division (2.1) in Engineering (including Electrical Engineering) or Physics.
• Excellent written and spoken communication skills. The ability to clearly communicate scientific ideas is of high importance. For explicit language requirements see https://www.kcl.ac.uk/study/postgraduate/apply/entry-requirements/english-language.aspx
• Experience of working in a lab environment.
• Experience of analysing data.
• Evidence of strong problem solving skills.
The following skills re desirable but not essential:
• Experience in working with optics;
• Experience in electronics and circuit design;
• Programming skills with e.g. Matlab, Python, Mathematica etc.
• An interest in fundamental quantum physics.
• An interest in science communication.
Application Procedure
Informal enquiries are encouraged and should be addressed to Dr. James Millen
Email contact: [Email Address Removed]
Candidates must submit a graduate application form and are expected to meet the graduate admissions criteria. Details are available on https://www.kcl.ac.uk/nms/depts/physics/prospective%20students/phdresearchdegrees/how-to-apply.aspx
Please quote research group Photonics & Nanotechnology in all correspondence and in your graduate application.
Application deadline: noon on 30 June 2018
Start date: October 2018
Advert information:
https://apply.kcl.ac.uk/
Indicate the area and name of supervisor(s).
The selection process will involve a pre-selection on documents, if selected this will be followed by an invitation to an interview. If successful at the interview, an offer will be provided in due time.
Funding Notes
University tuition fees are covered at the level set for UK/EU students, (c. £4,800 in total p.a.) and a tax-free stipend c. £16,500 p.a. with possible inflationary increases after the first year, both for 3.5 years.
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