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Research Fellows – Quantum computation with linear optics


Job Reference: Ref.09.21.44

Employer: International Iberian Nanotechnology Laboratory (INL)

Location: Braga, Portugal

Group/Unit: Quantum and Linear-Optical Computation (QLOC)

Number of Vacancies: 2

Employment Type: Full time

Contract Duration: 24 months


Open Date for Applications: November 9th 2021

Closing Date for Applications: December 20th, 2021, 23h00m (Lisbon Time)


Key words: quantum optics, photonics, quantum computation



The Quantum and Linear-Optical Computation (QLOC) research group at INL is doing theoretical work to guide the development and applications of cutting-edge photonic quantum computers. We are looking for two qualified researchers in the fields of theoretical quantum optics/quantum computation, whose work will contribute to the development of near-term, special-purpose photonic quantum computers. The researchers will work on the theory of characterization, simulation, and applications of state-of-the-art reconfigurable multi-mode interferometers, within the scope of the EC-funded PHOQUSING - “Photonics quantum sampling machine” project, funded by H2020 with grant agreement number 899544.


Job Duties

The job duties will be the following:

1.     Study and propose generalized versions of boson sampling, i.e. computational applications of reconfigurable linear and non-linear interferometers;

2.     Study of randomness generation and manipulation using photonic devices;

3.     Develop device validation techniques, including classical simulation and modelling;

4.     Devise proof-of-concept experiments using reconfigurable interferometers for hybrid quantum computation, quantum machine learning, and other suitable information-processing tasks.



Mandatory Qualifications



  • PhD degree in Physics, Physical Engineering, Computer Science, Mathematics, or other related field, is required.



  • Research experience with linear and/or nonlinear optics, or other physical platforms for quantum computation;
  • A good track record of disseminating research results.


Technical Skills

  • Knowledge of quantum computational models: circuit model, measurement-based quantum computation, variational quantum algorithms, etc.



Preferred Qualifications

  • Experience with programming and quantum simulation techniques;
  • Experience with machine learning and other optimization techniques;
  • International mobility experience.


Personal Skills

  • “Hands-on” approach together with high commitment in respecting working deadlines;
  • Problem Solving ability;
  • Team work spirit;
  • Ability to work independently and as team player;
  • Good communication skills.



Our Benefits

  • Competitive salary;
  • Tax benefits and other Diplomatic privileges;
  • Private health insurance;
  • Family allowances (according to family situation);
  • Free nursery service at INL premises (subject to availability);
  • Support for education fees of dependent children;
  • Relocation support;
  • 30 working days of annual leave.


How to Apply

The application must be in English and include the following mandatory documents:

a)     Cover letter;

b)     Curriculum Vitae;

c)      Academic certificates;

d)     At least two letters of recommendation, to be sent directly to a clear identification of candidate’s name and reference number of this call.


Online application instructions:

  1. The application is made online by clicking the “Apply” button below;
  2. The candidate must complete all required sections of the online application form;
  3. The candidate must submit the mandatory documents mentioned above in pdf format by including them in the “Additional files” section using the “Add portfolio” button.


Important note:

Incomplete applications including the failure to provide mandatory documents or providing inaccurate information will result in the application not being considered.



How the Selection Process works

A. Applications eligibility check

This stage will be carried out on the basis of the mandatory requirements, education, experience and technical skills defined for the job, as well as the validation of the mandatory documents. Only candidates who meet the eligibility criteria will move forward to the next stage.

B. CV Assessment

The Selection Committee will evaluate the eligible applications based on their CV and other submitted documents and the suitability for the position. The best ranked candidates will be shortlisted for the interview stage(s).

C. Interview(s)

The interview(s) may be done in different formats: video recordingonline or onsite.

The question based interview will evaluate the match between the candidate’s profile and the requirements for the position, including the technical and personal skills. To better support this stage, the candidate may be requested to prepare a short presentation.


D. Nomination

The selected candidate will be nominated and formally offered the position, including the disclosure of the contractual conditions. 


Additional Information


Application feedback

We highly value your interest in becoming part of the INL experience and it is important for us to maintain good communications with all candidates. No matter the outcome of your application, we will always provide you with feedback.


Equal Opportunity and Non-Discrimination Principle

INL follows a non-discrimination and equal access principle, wherefore no candidate can be privileged, benefited, impaired or deprived of any rights whatsoever, or be exempt of and duties based on any possible discriminatory issues.


The advertisement deadline may be extended at any time without previous notice in order to improve the suitability and effectiveness of the recruitment process.



About INL

The International Iberian Nanotechnology Laboratory – INL (, is the first and only Intergovernmental Organisation in the world entirely focused on Nanoscience and Nanotechnology.

It was founded under an international legal framework to perform interdisciplinary research, deploy and communicate nanotechnology for the benefit of society. INL aims to be a recognised leading global nanotechnology innovation hub.






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