Introducing Proteox
Introducing Proteox
The ProteoxTM dilution refrigerator: a step-change in Cryofree® system modularity
Unlock new applications, maximise system value and gain greater control over experimental set-up with the Proteox system from Oxford Instruments. A new innovation from the pioneers in dilution refrigerator technology.

Proteox™ for Quantum Computing
High RF line count for addressing higher qubit counts
With capacity for up to 140 coaxial cables on the patent protected, demountable secondary insert, scaling experimental services has never been easier for even the most demanding of applications.

Large payload for more superconducting qubits
With a 360 mm diameter mixing chamber plate and 66,000 cc sample volume, the ProteoxMX is the largest fridge in its class. High payload mass allowance of up to 20 kg at mK temperatures and 125 kg at 4K.

High performance dilution unit for superior qubit cooling
300 and 500 µW cooling power at 100 mK with efficient 3He usage. 10 mK base temperature with optimised base flow performance for ultra-stable low noise performance.


Proteox™ for Condensed Matter Physics
High Field for magnetic and electronic properties
Incorporate solenoid magnets up to 14T and Vector magnets up to 9T vertical field for Magnetic Susceptibility investigations and Fermi Surface Mapping using the de Haas-van Alphen effect.

Bottom loading system for rapid sample exchange
Large 72mm diameter rapid exchange sample pucks for increased experimental throughput. Up to 96 DC lines and 28 coax to facilitate a wide range of experimental setups.

High performance dilution unit for ULT phase changes
Wide temperature range for phase change investigations. 10 mK base temperature with optimised base flow for ultra-stable low noise performance and active gas gap heat switches for high temperature control above 30K.


Proteox™ for Quantum Transport
Superconducting magnets and rapid sample exchange
Rapid turnaround of Quantum Hall and Fractional Quantum Hall Effect measurements using Oxford Instruments superconducting magnets combined with a patented bottom loading sample exchange system.

Low noise, protected measurement environment
Signal conditioning Cold Filters and SampleProtect system can be specified to minimise high frequency noise and protect sensitive samples from electrostatic discharge. 4 filter cut-off frequencies between 170 Hz and 110 kHz.

Integrate Nanonis Tramea for a fully systemised solution
Nanonis Tramea™ is a complete measurement platform for Quantum Transport Measurements. It offers multi-channel measurements, high-resolution AD/DA conversion, signal conditioning and fast signal processing.


Proteox™ for Quantum Optics
Optical fibres for quantum communication
Optical fibres and piezo positioner control lines can be incorporated into the system to provide experimental services for Optomechanical experiments and Quantum Communication.

Direct line of sight access to the sample space
Optical access can be provided in free space via light pipes or optical windows, with radiation shield optical filters and a wide choice of window materials dependent on transmission requirements.

Low vibration for increased sensitivity
The Proteox system utilises multiple mechanisms to reduce transfer of vibrations for a stable measurement environment, including a solid pump line, and isolating bellows on both still line and pulse tube.

Join our virtual roadshows from 30th June to 15th July
Catchup on our virtual event Webinars

Parametrically driven gates and loss operators in superconducting circuits
Third order nonlinearities have long been used to power parametrically-driven microwave amplifiers for measurement of superconducting qubits. I will present two new experiments which adapt the same parametric drives to control and couple transmon qubits and high-Q cavities. In both cases, the three-wave couplings in the system are created in a flux-biased, SNAIL-based resonator, which is dispersively coupled to the objects to be controlled.

Studying the flow of electrons in few-layer graphene
Two dimensional materials are of great interest for fundamental science and applications. There have been extensive studies on monolayer graphene where unique properties result from the symmetry of the honeycomb lattice. Few-layer graphene systems are of interest as they offer interesting opportunities to study effect of electronic interactions while monolayer graphene was largely understood in terms of independent electron picture.

Fractional conductance quantisation in one-dimensional electrons
In this webinar, Sanjeev will present results on the recently discovered zero-magnetic fractional conductance quantisation in quasi-one-dimensional electrons realized in GaAs/AlGaAs semiconductor heterostructures. The non-trivial characteristics and potential of these non-magnetic fractional states for future quantum technologies would be discussed.

Cryofree magnet system for low temperature transport measurement
In this talk, Mengqiao will discuss about the measurement probes, sample protecting units and the quantum transport measurement system, which are the key elements of an electrical transport measurement solution at low temperature. In this context, he will share the concept and working principles of Oxford Instruments’ TeslatronPT superconducting magnet system. Also, find out how the Shanghai Demolab is helping researchers and listen to two related stories with the collaborators.

Transport properties of low dimensional semiconductors
Find out how Javad Shabani uses a 12 Tesla Teslatron top loader system to study transport properties of such quantum wells, quantum Hall effect, Shubnikov de Haas mass measurements and spin orbit coupling in these two dimensional gas systems.

Quantum computing and qubit scale-up applications with Proteox
In this webinar James Robinson provides an overview of the new Proteox dilution refrigerator from Oxford Instruments, highlighting the key features and suitability for many quantum computing and qubit scale-up applications.
Guest presentations

Spin-triplet superconducting state in the nearly ferromagnetic compound UTe2
A guest presentation from 2020 LOR Science Prize winner, Dr Sheng Ran, an expert in the field of quantum materials.
16th June 2020, 3pm GMT
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