A fully funded 3.5 year PhD position is available in the Ion Trap Cavity-QED and Molecular Physics (ITCM) Group in the Department of Physics & Astronomy at the University of Sussex. The project is within the Networked Quantum Information Technologies (NQIT) Hub.
For more information, please contact Prof Matthias Keller (email@example.com).
This project unites two distinct areas of quantum information processing: single ions stored in radio-frequency traps and single photons in optical fibres. Both fields have seen spectacular advances in recent years. Strings of ions are presently the most successful implementation of quantum computing, with elementary quantum algorithms and quantum simulations realised. Photons are used to distribute entanglement over ever increasing distances.
The principal challenge in the field is to enhance quantum processing power by scaling up current devices to larger quantum systems. We are pursuing one of the most promising strategies, distributed quantum computation, in which multiple small-scale ion processors are interlinked by exchanging photonic quantum bits via optical fibres. This requires novel ion trap structures that facilitate high-performance quantum computation and a photonic interconnect for networking. To create a high efficiency ion-photon interconnect for networking, we use miniature optical cavities. The Ion Trap Cavity-QED and Molecular Physics group in Sussex has a leading role in this field.
The aim of this project is to design, build and test a compact ion based quantum information processor. It consists of a linear ion trap with several separate trapping regions in which the ions can be loaded, cooled and quantum information processing can be performed. In addition, the structure contains a trapping region in which an optical micro-cavity is employed as a quantum interconnect between different quantum processors. The project involves the simulation of the ion trapping structure and the ion dynamic in the ion trap as well as the shuttling between different trapping regions. The optimised trapping structure will then be fabricated using micro-fabrication techniques and characterised. The transfer of ions between the various trapping regions and the quantum interconnect will be tested.
Skills and training
An important part of this PhD project is the skills development and training. Local training through lecture courses, transferable skills training modules and practical training in the laboratory will be complemented by SEPNet wide training events. These include workshops and training schools.
£14,777 per annum tax-free bursary and waiver of UK/EU fees each year for 3.5 years, as well as funding for research training and travel. Additional funding may also be available to support placements with outside partners for a further period of six months in total.
Applicants should hold, or expect to hold, a UK undergraduate degree in physics or engineering. If you are unsure about the equivalence of your qualifications, please contact us at firstname.lastname@example.org
Due to funding restrictions, the studentship is open to UK and EU resident students only. However, we also welcome applications from self-funded non-EU students
Apply on-line via the University of Sussex portal. State in the Funding section of the application form that you are applying for the "PhD Studentships in Experimental Atomic Physics."
Nu Quantum is a young and dynamic high-tech company that specialises in modular hardware for Quantum Cybersecurity: a platform single-photon source array technology for use in Quantum Random Number Generators and Quantum Key Distribution.
Nu Quantum, a recent spin-out from the University of Cambridge with strong links to the Quantum Optical Materials and Systems Group of the Cavendish Laboratory, is looking for quantum device engineers with experience in optoelectronic device fabrication and processing with atomically thin two-dimensional materials.
This position is ideally suited for those who are about to finish their PhD or Postdoc, and are curious about industrial quantum technologies research and the cutting-edge spin-off environment.
You will have full access to the fabrication and characterisation facilities at the University, and enjoy a collaborative environment comprising academic and industrial researchers, geared towards rapid prototyping of novel heterostructures on the way to product development.
Length of Position: 12 months in the first instance with possibility to extend.
Salary: Senior-level postdoctoral researcher equivalent.
Start date: February 1st, 2019, but it is flexible.
Desirable Experience: 2d material processing, optoelectronic device fabrication, basic optoelectronic device characterisation, cleanroom operations, overall being technically astute and creative.
If you are interested in this position or would like to know more about Nu Quantum, please email email@example.com
Application deadline is January 31 for UK/EU students, January 18 for international students.
The University of Warwick is looking for a graduate student to join the quantum information science group of Animesh Datta. The goals of this theoretical project are to produce the design principles for quantum sensors that can tackle some of the most fundamental open problems in physics. Instances include the direct detection of dark matter, testing the validity of quantum mechanics in macroscopic systems, searching for time variation of fundamental constants, and the direct detection of gravitational waves from exotic sources. The principle underlying all of these quests is the precise sensing of physical observables such as exquisitely small forces, phases, displacements and temperature.
The student must be interested in a close interplay of quantum metrology, quantum information science, quantum optics, and quantum mechanics.
See www.warwick.ac.uk/qinfo/join for details of the project and application instructions.
We are looking for a Postdoctoral Research Assistant in Optically Networked Quantum Spin Registers in Diamond in the Department of Materials.
The post is fixed-term up to 30 November 2019.
You will play a central role in the development of optically networked quantum spin registers in diamond, within the UK Hub in Networked Quantum Information Technologies (NQIT), co-ordinated by the University of Oxford. The project goals are to develop diamond quantum technologies based on high efficiency spin-photon interfaces in which nitrogen vacancy defects written into diamond using laser processing techniques are coupled to bespoke optical microcavities.
You will play a key role within the Oxford group and collaborate with team members at partner universities (Cambridge, Warwick, and Strathclyde). You will be undertaking research in the engineering of colour centres in diamond using laser writing techniques; coupling of single NV- defects to optical microcavities at cryogenic temperatures; development of spin control techniques and logical operations; and entanglement of NV centres across an optical network
With a first degree and doctorate in physics, materials science, chemistry, engineering or related discipline; you will be well organised and self-motivated with the ability to manage the day-to-day running of a research project, to identify research objectives and carry out appropriate research activities within a given time-scale. You will have a sound grasp of quantum mechanics, optics, and atomic/molecular/solid state physics.
To apply, please visit the Oxford University Recruitment website: recruit.ox.ac.uk and search for vacancy 137336.
This is an exciting opportunity to join the User Engagement team of the NQIT Hub that is developing and commercialising quantum computing. NQIT is part of EPSRC’s £270m UK National QT Programme and a flagship project with responsibilities to achieve global leadership in research and economic impact. It is led by the University of Oxford.
Building on world-leading research, NQIT is developing practical quantum computing and simulation technologies and creating a new industry sector in the UK. The consortium of nine universities is funded by an award of £38m and supported by a number of commercial partners. The User Engagement Team identifies and works with such partners in the technology industry and the future application development and use. The current 5-year phase runs from 2014 until 2019.
This post is available for a fixed-term of 1 year, with the possibility of extension to November 2019. Furthermore the EPSRC is preparing for a 2nd phase that could extend to 2024. Secondments will be considered.
This is not a research role but the successful candidate must develop a good understanding of the relevant technologies and should possess a physical science, materials, engineering or computer science degree. Good interpersonal and communication skills are essential and an understanding of IP, commercial contracts and research funding would be advantageous. Candidates should demonstrate the ability to liaise effectively with wide range of organisations. Previous working experience in knowledge exchange, technology transfer or roles in innovation in academia, industry or the public sector would be an advantage.
Please direct enquiries about the role to Frances Sweeney.
Apply online at the Oxford University Recruitment website
An NQIT EPSRC DTP Studentship is available working in the Photonic Nanomaterials Group in the Department of Materials, University of Oxford, supervised by Professor Jason Smith.
This project will involve coupling diamond colour centres in single crystal membranes into optical microcavities to build efficient interfaces between coherent spin states and an optical network.
Our apparatus is now at the stage where we have demonstrated the first cavity-enhanced photon emission from a zero phonon line of a nitrogen vacancy centre in a diamond membrane. Further work is required to improve the quality of the colour centres in the membranes. The project will involve investigation of NV centres in membranes of different crystal orientations and using different material growth conditions.
Please contact Professor Jason Smith for more information.
To apply, please visit the Department of Materials Postgraduate Admissions website.
A maternity cover position is available for an experienced communications expert who is keen to lead the communications strategy for a high profile flagship research project led by the University of Oxford.
The size and complexity of this strategically critical award presents a rare opportunity for someone looking to embrace fast moving communications challenges in a world leading research environment, together with management of a wide and varied programme of internal and public facing events. Effective communication with consortium members, partners, stakeholders and the public is crucial to the Hub’s mission and this role is vital to the delivery of these objectives.
The Networked Quantum Information Technology Hub (NQIT) Hub builds on the world’s most advanced quantum technologies to develop practical technologies in entirely new sectors. It is funded by a £38m grant awarded to a consortium of nine universities and is supported by a number of commercial and governmental partners. As part of EPSRC’s £270m National Quantum Technologies Programme, the Hub has an international profile and corresponding responsibilities to achieve the highest levels of success. More information can be found at nqit.ox.ac.uk.
Applicants should either possess a sciences degree or evidence of the ability to engage rapidly and effectively with unfamiliar technical material. Understanding of quantum information and previous experience of working in a university environment are not essential as this role also has an industry focus. However, excellent communication skills gained with a variety of media and evidence of successful oral and written presentation of technical material are essential. Candidates will be expected to have demonstrable experience in the ability to liaise effectively with wide range of people including the general public, internal staff, industrial collaborators and funding agencies.
Please direct enquiries about the role to Frances Sweeney (firstname.lastname@example.org).
For a full job description and to apply online, please go to this job advert on the Oxford University Recruitment Website
Entanglement, in which two quantum systems can exhibit correlations that are greater than the limit allowed by classical physics, is one of the most intriguing predictions of quantum mechanics. Entanglement between remote atoms or ions is a key resource for quantum computing, and plays a central role in the proposed NQIT Q20:20 machine.
We propose two schemes for entangling remote atoms: one probabilistic and one deterministic. In the probabilistic scheme, two distant atoms each emit a photon which are combined at the two input ports of a 50:50 beamsplitter. If the photons are detected at different output ports, then the atoms are projected into an entangled state. In place of a simple beam splitter, we also anticipate using more complex photonic networks [A. Holleczek, PRL 117, 023602 (2016)] in combination with active optical photon switching and routing. In the deterministic scheme, an atom emits a single photon which is reabsorbed by a second atom by running the emission process in reverse [J. Dilley, PRA 85, 023834 (2012)]. In doing so, the state of the first atom is entangled with that of the second. In both schemes, a high-finesse optical cavity is used to enhance the light-atom interactions.
Currently, we have two optical cavity experiments with random atom loading. The first phase of the project will be to build an optical dipole trap to permanently hold single atoms in the cavities. The feasibility of this approach has recently been demonstrated [D. Stuart, arXiv:1708.06672], and suitable fibre-tip and FIB-milled cavity mirrors are at present under development. The second phase will be to generate and quantify the entanglement between the two remote atoms using full Bell-state tomography.
This is a highly challenging experimental project which will push the limits of laser and optical technology. It would suit a student with experience in atomic and laser physics and a keen interest in exploring quantum phenomena experimentally. EPSRC eligibility criteria apply for this project, therefore only UK students witha funding status of "Home" are eligible for the position.
The research team of Dr Kuhn does encompass two postdocs and four graduate students which operate three laboratories dedicated to cavity-qed and atom-photon coupling in cavities at the Physics department of the University of Oxford. The work space is well equipped, comprising four vacuum chambers for studying atom-photon coupling in cavities, a large number of ECDL and fibre lasers for atom manipulation, a frequency comb for synchronously stabilising all laser and cavity frequencies, and a large battery of single-photon counters. The project builds on the current work by other graduate students in our group, atom-cavity coupling and strong cavity coupling.
The new student will directly contribute towards achieving cavity-mediated remote entanglement. The deterministic entanglement scheme will be done in close collaboration with Almut Beige’s theory group in Leeds, who have developed a complete quantum description of the field inside a cavity, as well as devised cavity-cavity coupling protocols. All necessary apparatus exists within NQIT, including high-finesse cavities, vacuum chambers, and all necessary lasers for trapping and driving the photon production process. Close support on a day-to-day basis will be provided by at least one Oxford PDRA for the duration of the project.
Further details from Dr Axel Kuhn.
We are pleased to announce the opening of a full-time post-doctoral position at Oxford University as part of the EPSRC-funded Networked Quantum Information Technologies (NQIT) Hub. The aim of the Hub is to take some of the UK’s world-leading experimental work in ion traps and photonic networks and translate it into quantum computing technology through a highly ambitious and multidisciplinary programme.
The role is within the theory group of Dr Jonathan Barrett, focusing on the areas of small-scale quantum computing, secure communications, and the verification of quantum technology. The research includes the development of algorithms that can run on a small-scale quantum device, protocols for verifying that a quantum device is behaving as advertised even when held by an adversary, and/or device-independent protocols for cryptographic tasks such as key distribution and randomness generation. The work will support the overall theory, design, and applications development for quantum computing systems developed within the NQIT hub.
You will have, or shortly be expecting to obtain, a doctoral degree in Computer Science, Physics, Mathematics, or a related discipline. You should also have a proven record of research, including strong publications, in at least one of the areas of quantum communication, quantum cryptography or quantum algorithms; a willingness to collaborate with experimental groups; excellent scientific writing ability and good communication skills; willingness to travel internationally.
The post is fixed-term until 30 November 2019.
The closing date for applications is 12 noon on 11 April 2018
Further details of the post, including the selection criteria and method of application are available from: https://www.recruit.ox.ac.uk/pls/hrisliverecruit/erq_jobspec_version_4.jobspec?p_id=134078
Our staff and students come from all over the world and we proudly promote a friendly and inclusive culture. Diversity is positively encouraged, through diversity groups and champions, for example for example http://www.cs.ox.ac.uk/aboutus/women-cs-oxford/index.html, as well as a number of family-friendly policies, such as the right to apply for flexible working and support for staff returning from periods of extended absence, for example maternity leave.
The project is within the Networked Quantum Information Technologies Hub and in collaboration with Dr Peter Horak (University of Southampton).
For more information please contact Prof Matthias Keller (email@example.com).
The project unites two distinct areas of quantum information processing, single ions stored in radiofrequency traps, and single photons in optical fibres. In both fields, there have been spectacular advances recently. Strings of ions are presently the most successful implementation of quantum computing, with elementary quantum algorithms and quantum simulations realized. Photons are used to distribute entanglement over ever increasing distances. The principal challenge in the field is to enhance quantum processing power by scaling up current devices to larger quantum systems. We are pursuing the of the most promising strategies, distributed quantum computation, in which multiple small-scale ion processors are interlinked by exchanging photonic quantum bits via optical fibres. It requires an efficient quantum interface between ions and photons, mapping ionic to photonic quantum states and vice versa. To maximise fidelity and the success rate of the scheme, the interaction of ions and photons must take place in an optical cavity with high finesse, a technology in which the Ion Trap Cavity-QED and Molecular Physics group in Sussex has a leading role.
The aim of this project is to investigate, optimise and evaluate schemes to generate entangled states between trapped ions and photons in different implementations such as polarisation, time bin or phase decoding. For this, cavity assisted Raman transitions will be employed to transfer the ion’s state onto the photon in a deterministic way. The project is mainly experimental and will be conducted in the research labs in Sussex, the theoretical study of the schemes and possible developments of novel schemes will be pursued in collaboration with Peter Horak, University of Southampton.
Apply on-line via the University of Sussex portal, http://www.sussex.ac.uk/study/phd/apply. State in the Funding section of the application form that you are applying for the "PhD Studentships in Experimental Atomic Physics."