PhD fellow in Quantum photonics

Updated: 9 days ago
Deadline: 01 Apr 2021

The Niels Bohr Institute, Faculty of Science at University of Copenhagen is offering a PhD scholarship in Quantum photonics commencing 1 june 2021 or as soon as possible thereafter.

Description of the scientific environment
The position is embedded in the Quantum Photonics Group within the Center of Excellence “Hybrid Quantum Networks Hy-Q”. We carry out fundamental and applied research on solid-state quantum-information processing with solid-state quantum emitters embedded in photonic nanostructures.

Title: Nanomechanical quantum photonic devices

Project description
The Niels Bohr Institute (NBI), University of Copenhagen, is seeking an enthusiastic student who enjoys working as part of a team to undertake a PhD in the quantum photonics group (www.quantum-photonics.dk ) . The project will be supervised by Assoc. Prof. Leonardo Midolo and Dr. Rodrigo Thomas. The aim of the project will be to develop a new set of nano-scale devices for controlling and manipulating light-matter interaction in a quantum photonic integrated circuit. The project will involve a combination of experimental optics, device simulation, and nano-fabrication. The student will be based in a well-equipped quantum optics lab at the NBI and cleanroom facility at the H.C. Ørsted building. 

The successful candidate will be joining the recently-funded ERC project NANOMEQ (https://cordis.europa.eu/project/id/949043 ). The goal of the project will be to develop a new platform for photonic quantum information processing based on nano-opto-electro-mechanical systems (NOEMS) [1]. NBI has developed state-of-the-art deterministic single-photon sources [2] using semiconductor quantum dots integrated in photonic nanostructures [3]. To fully harness the potential of integrated photonic quantum technologies, it is necessary to scale it up, i.e. to perform operations on many photonic quantum bits (or ‘qubits’) simultaneously to generate and manipulate entangled photons. The overarching goal is to demonstrate the seamless integration of single-photon sources with the quantum gates required for building truly scalable quantum photonic micro-processors. In this project we will pursue a novel approach to control light-matter interaction and quantum gates based exclusively on electro- and opto-mechanical interactions. The emphasis of this project will be in the design and fabrication of robust nano-mechanical photonic devices such as routers [4] and phase shifters towards the demonstration of multi-mode unitary gates and scalable single-photon sources.

The PhD student’s tasks will include:

  • Learn and understand solid-state quantum emitters and the fundamentals of quantum optics (MSc and PhD level courses are offered at NBI).
  • Acquire the fabrication skills required to build nano-mechanical devices and single-photon sources in gallium arsenide (GaAs).
  • Build and optimize an optical setup for the efficient interfacing between fibers and photonic integrated circuits at cryogenic temperature.
  • Characterize the single-photon sources in our optical laboratories.
  • Perform numerical simulations (finite difference time domain or finite elements) of the devices.

[1] L. Midolo et al, “Nano-opto-electro-mechanical systems,” Nat. Nanotechnology 13, 11-18 (2018).

[2]  R. Uppu et al, “On-chip deterministic operation of quantum dots in dual-mode waveguides for a plug-and-play single-photon source,” Nat. Commun. 11, 3782 (2020).

[3] P. Lodahl et al, “Interfacing single photons and single quantum dots with photonic nanostructures”, Rev. Mod. Phys. 87, 347 (2015).

[4] C. Papon et al., "Nanomechanical single-photon routing," Optica 6, 524-530, (2019).

Principal supervisor isAssoc. Prof. Leonardo Midolo, Niels Bohr Institute, E-mail: midolo@nbi.ku.dk.

Job description
The position is available for a 3-year period and your key tasks as a PhD student at SCIENCE are:

  • To manage and carry through your research project 
  • Attend PhD courses
  • Write scientific articles and your PhD thesis
  • Teach and disseminate your research
  • To stay at an external research institution for a few months, preferably abroad
  • Work for the department

Formal requirements
Applicants should hold an MSc degree in physics or engineering with good results and good English skills. As criteria for the assessment of your qualifications emphasis will also be laid on previous publications (if any) and relevant work experience.

Terms of employment
The position is covered by the Memorandum on Job Structure for Academic Staff.

Terms of appointment and payment accord to the agreement between the Ministry of Finance and The Danish Confederation of Professional Associations on Academics in the State.

The starting salary is currently at a minimum DKK 330,284 (approx. €44,000) including annual supplement (+ pension at a minimum DKK 53,674). Negotiation for salary supplement is possible.

Application Procedure
The application, in English, must be submitted electronically by clicking APPLY NOW below.

Please include

  • Cover Letter
  • CV
  • Diploma and transcripts of records (BSc and MSc)
  • Acceptance Letter for the relevant MSc Programme at SCIENCE, if any
  • Other information for consideration, e.g. list of publications (if any)
  • 1-3 reference letters (if any)

Reference letters must be uploaded by the applicant him/herself. The recruiting person must NOT  obtain reference letters which content is not known to the applicant him/herself. This is against Danish law.

The University wishes our staff to reflect the diversity of society and thus welcomes applications from all qualified candidates regardless of personal background.

The deadline for applications is 1 April 2021, 23:59 GMT +1.

After the expiry of the deadline for applications, the authorized recruitment manager selects applicants for assessment on the advice of the Interview Committee. Afterwards an assessment committee will be appointed to evaluate the selected applications. The applicants will be notified of the composition of the committee and the final selection of a successful candidate will be made by the Head of Department, based on the recommendations of the assessment committee and the interview committee.

The main criterion for selection will be the research potential of the applicant and the above mentioned skills. The successful candidate will then be requested to formally apply for enrolment as a PhD student at the PhD school of Science. You can read more about the recruitment process at https://employment.ku.dk/faculty/recruitment-process/ .

Questions
For specific information about the PhD scholarship, please contact the principal supervisor Assoc. Prof. Leonardo Midolo, Niels Bohr Institute, E-mail: midolo@nbi.ku.dk

General information about PhD programmes at SCIENCE is available at https://www.science.ku.dk/phd .


Part of the International Alliance of Research Universities (IARU), and among Europe’s top-ranking universities, the University of Copenhagen promotes research and teaching of the highest international standard. Rich in tradition and modern in outlook, the University gives students and staff the opportunity to cultivate their talent in an ambitious and informal environment. An effective organisation – with good working conditions and a collaborative work culture – creates the ideal framework for a successful academic career.


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