IIT Guwahati scientists led by Professor Amarendra Kumar Sarma from Department of Physics and his research scholars Dr. Subhadeep Chakraborty and Mr. Sampreet Kalila have studied the workings of quantum entanglement.

IIT Guwahati scientists win great global recognition

IIT Guwahati scientists summarised their understanding in an invited review article in a prestigious research journal ‘AVS Quantum Science’ which is published by American Institute of Physics.

Professor Sarma who is one among the IIT Guwahati scientists was invited to write a review article for the journal in recognition to his seminal works in quantum optics.

IIT Guwahati scientists published their research articles in the area of quantum optics in various prestigious journals such as Physical Review A, Journal of Optical Society of America B, Annals of Physics, Scientific Reports.

Couple of recent works by Professor Sarma who led the IIT Guwahati scientists are available on the links given below:

‘https://doi.org/10.1103/PhysRevA.100.063846’

‘https://doi.org/10.1364/JOSAB.34.001503’

‘https://doi.org/10.1016/j.aop.2018.03.007’

‘https://doi.org/10.1038/s41598-018-32743-1’

‘https://doi.org/10.1103/PhysRevA.102.043719’

Quantum physics, the field of Science that has ridden on the shoulders of such giants as Niels Bohr, Werner Heisenberg, and Erwin Schrödinger, continues to be researched by labs all over the world, to help unravel the workings of the universe, say IIT Guwahati scientists.

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This study of subatomic particles and forces forms the basis of the computer chip, the electric current, laser power, and even light from the sun, say the IIT Guwahati scientists.

IIT Guwahati scientists further said one of the most fascinating and perhaps bizarre traits of quantum mechanics is quantum entanglement, the interaction among quantum systems such as subatomic particles, in ways not possible in our larger, perceivable classical world.

When two subatomic particles, like a pair of electrons, are entangled, it is impossible to measure properties of one without affecting the other.

No matter how far they move apart, if one is tweaked, measured, or observed, the other seems to instantly respond, even if the whole world now lies between them.

It is the same phenomenon that baffled even the mind of well-known scientific genius Albert Einstein, said Professor Sarma, who led the team of IIT Guwahati scientists.

That, however, does not make it unreal – numerous experiments have established that entanglement is indeed a real phenomenon in subatomic systems, said Professor Amarendra Kumar Sarma who led the team of IIT Guwahati scientists.

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In fact, quantum entanglement is the building block of the second generation of quantum technology such as quantum computation, quantum cryptography, quantum teleportation, and quantum dense coding, added Prof. Sarma who led IIT Guwahati scientists.

Various research groups around the world are working towards understanding quantum entanglement across various subfields.

IIT Guwahati scientists comprising Dr. Sarma and his team works on understanding it in the realm of cavity optomechanics, the interaction between light and mechanical objects at low-energy scales.

Speaking further Professor Sarma said in simplified terms, a cavity optomechanical system refers to a set of mirrors where one of the mirrors is fixed while the other one is slightly movable.

‘Such systems provide a universal tool to achieve quantum control of mechanical motion.’

But beyond application, the research helps to understand the boundary between classical and quantum physics, said Professor Sarma who led the team of IIT Guwahati scientists.

‘We have come up with various practical schemes to enhance quantum correlations in optomechanical systems.’

Apart from entanglement we are looking into the aspects of qubit transfer, photon and phonon blockade also in such systems owing to their tremendous applications in quantum communication and information sciences,’ Dr. Sarma who is the lead among IIT Guwahati scientists.

More recently, scientists have addressed the issue of ‘entanglement sudden death’ under the influence of a local noisy environment, a stumbling block encountered by scientists a decade ago.

The researchers have proposed a scheme to tackle such shortcomings using an optomechanical platform.

The scientists have published their work in prestigious journals of Physics.

The recently featured article of the scientists in AVS Quantum Science has provided them the impetus for more rigorous research in unravelling the mysteries of quatum entanglement and other quantum optical phenomena.

The schedule to submit applications for JEE Advanced 2025 has been announced along with that of AAT 2025 registration,

Application process for AAT starts after result declaration of JEE Advanced. This year too, the trend is no different.

Who will conduct AAT 2025?

AAT 2025 will be conducted by IIT Kanpur and is expected to see a participation in impressive numbers. The same institution is conducting JEE Advanced 2025.

Details about the exam are available on the official website mentioned above. Students who pass AAT 2025 will be able to study BArch in IIT Roorkee, IIT Kharagpur and IIT (BHU) Varnasi.

Who can take up AAT 2025 registration?

Students who have passed JEE Advanced 2025 with required qualifying marks can take up AAT 2025 registration. Applying for JEE Advanced requires a pass in JEE Mains.

Candidates who have passed plus two with maths, physics and chemistry as subjects will be able to take up JEE Mains registration. The process to take up JEE Advanced AAT 2025 registration is online.

1. The URL has to be typed into the browser and the webpage has to be allowed to download.

2. Once the website is available, students should click the link for JEE Advanced AAT 2025 registration and enter JEE Advanced 2025 registration number, their date of birth, mobile number and email address.

3. Post providing the above details, applicants will be asked if they are interested in AAT. Students have to answer ‘Yes’ to take up JEE Advanced AAT 2025 registration.

4. Candidates have to provide the required information and choose the centers where they wish to write the exam and submit the form.

5. They will receive message indicating successful completion of JEE Advanced AAT 2025 registration.

The message has to be downloaded and a printout of it has to be taken and preserved for use in future. This could be of use during the admission process.

Website for JEE Advanced 2025/AAT 2025 Registration is Here

Exam pattern

Candidates who have completed JEE Advanced AAT 2025 registration must also know the exam pattern if they are to score good marks.

Those who have taken up AAT 2025 registration can take up the exam which will be held in offline mode, as a pen and paper mode test.

Candidates will have three hours time to answer all the questions. The medium of the test is English.

The sections in the question paper are – Imagination and aesthetic sensitivity, three dimensional perception, Geometrical drawing, Freehand drawing and Architectural Awareness.

Syllabus for AAT 2025

The next thing to do after completing AAT 2025 registration is focus on preparing for the test.

The subjects to be studied while preparing for AAT 2025 are mentioned below. Candidates can also refer the official website for more information on syllabus when the registration for the exam begins:

Geometrical Drawing

Exercises in geometrical drawing containing lines, angles, triangles, quadrilaterals, polygons, circles, etc. Study of plan (top view), elevation (front or side views) of simple solid objects like prisms, cones, cylinders, cubes, splayed surface holders, etc.

Freehand Drawing

This would comprise of simple drawing depicting the total object in its right form and proportion, surface texture, relative location and details of its component parts in appropriate scale.

Common domestic or day-to-day life usable objects like furniture, equipment, etc., from memory.

Three dimension perception

Understanding and appreciation of three-dimensional forms with building elements, colour, volume and orientation. Visualization through structuring objects in memory.

Architectural Awareness

General interest and awareness of famous architectural creations – both national and international, places and personalities (architects, designers, etc.) in the related domain.

Imagination and Aesthetic Sensitivity

Composition exercise with given elements. Context mapping.

Creativity check through innovative uncommon test with familiar objects. Sense of colour grouping or application.

The medium of the test is English. The sections in the question paper are – Imagination and aesthetic sensitivity, three dimensional perception, Geometrical drawing, Freehand drawing and Architectural Awareness.

The admit cards obtained for JEE Advanced 2025 can also be used to gain entry into the test centers for AAT 2024.

Point to remember

Candidates can visit the official website of JEE Advanced exam for more information on JEE Advanced AAT 2025 registration and other related topics.

The students have to quickly take up the AAT 2025 registration as the time left would be very short.

Like JEE Advanced exam where the registration is open for a longer duration, that of AAT 2025 registration is open for only a short period.

The details about AAT 2025 registration provided above are for general understanding purpose of the students.

There could be some changes in the exam, students can visit the official website of the exam at regular intervals to receive updates.

More information could be provided as the time for AAT 2025 registration would commence, till that time, students can refer other sources also.

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