Arun K. Pati
Encyclopedia
Arun Kumar Pati is a physicist
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...

 notable for his research in quantum information
Quantum information
In quantum mechanics, quantum information is physical information that is held in the "state" of a quantum system. The most popular unit of quantum information is the qubit, a two-level quantum system...

 and computation, the theory of geometric phases and its applications, and the foundations of quantum mechanics
Quantum mechanics
Quantum mechanics, also known as quantum physics or quantum theory, is a branch of physics providing a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. It departs from classical mechanics primarily at the atomic and subatomic...

.

Career

In 1989, he took up a position as a theoretical physicist in the Theoretical Physics
Division, BARC
BARC
Barc or BARC may refer to:Institutions* Beltsville Agricultural Research Center* Bhabha Atomic Research Centre, an Indian nuclear research facility* Bradford Amateur Rowing Club* British Automobile Racing ClubVessels and vehicles* Barque...

, Mumbai
Mumbai
Mumbai , formerly known as Bombay in English, is the capital of the Indian state of Maharashtra. It is the most populous city in India, and the fourth most populous city in the world, with a total metropolitan area population of approximately 20.5 million...

, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. From 1998-2000, he was a visiting scientist
and an EPSRC fellow at the University of Wales, Bangor, UK.
He was a visiting scientist at the Institute of Physics, Bhubaneswar
Institute of Physics, Bhubaneswar
Institute of Physics, Bhubaneswar is an autonomous research institution of the Department of Atomic Energy , Government of India. The Institute was established in 1972 by the Government of Orissa, under the founding director Dr. Trilochan Pradhan, when the Institute started theoretical research...

, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. He is currently an associate professor at the Harish Chandra Research Institute, Allahabad, India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

.
A.K.Pati's profile on HRI.

Work

He is known for the quantum no-deleting theorem
Quantum no-deleting theorem
Quantum states are fragile in one sense and also robust in another sense. Quantum theory tells us that given a single quantum state it is impossible to determine it exactly. One needs an infinite number of identically prepared quantum states to know a state exactly. This has remarkable...

. He also discovered the remote state preparation protocol in quantum information theaory, which has been experimentally tested by several groups. He along with other scientists introduced the concept of geometric phase for mixed states. This has been experimentally measured by several groups around the world. Recently Arun K. Pati along with Samuel L. Braunstein
Samuel L. Braunstein
Samuel Leon Braunstein is a professor in the Computer Science department at the University of York, UK. He is a member of a research group in non-standard computation, and has a particular interest in quantum information and quantum computation.Braunstein has written or edited three books, and has...

 have proved the no-hiding theorem in quantum information theory. This has applications that include quantum teleportation
Quantum teleportation
Quantum teleportation, or entanglement-assisted teleportation, is a process by which a qubit can be transmitted exactly from one location to another, without the qubit being transmitted through the intervening space...

, quantum state randomization, thermalization and the black hole information loss paradox.

Honors

Pati is the recipient of the India Physics Association Award for
Young Physicist of the Year (2000) and the Indian Physical Society Awards
for Young Scientists (1996). His research has been featured in news items
in Nature
Nature (journal)
Nature, first published on 4 November 1869, is ranked the world's most cited interdisciplinary scientific journal by the Science Edition of the 2010 Journal Citation Reports...

 and Science
Science (magazine)
Science was a general science magazine published by the American Association for the Advancement of Science . It was intended to "bridge the distance between science and citizen", aimed at a technically literate audience who may not work professionally in the sciences...

.

He is also recipient of Samanta Chandra Sekhar Award for the year 2009 from
Orissa Bigyan Academy, Bhubaneswar, Orissa.

Books by Pati

  • Samuel L. Braunstein
    Samuel L. Braunstein
    Samuel Leon Braunstein is a professor in the Computer Science department at the University of York, UK. He is a member of a research group in non-standard computation, and has a particular interest in quantum information and quantum computation.Braunstein has written or edited three books, and has...

     and Arun K. Pati, Quantum Information with Continuous Variables, Kluwer Academic Publisher, The Netherland, 2003.

  • Derek Abbott
    Derek Abbott
    Derek Abbott is a physicist and electronic engineer. He is a Professor of Electrical and Electronic Engineering at the University of Adelaide, Australia...

    , Paul C. W. Davies, and Arun K. Pati (Eds.), with Foreword by Roger Penrose
    Roger Penrose
    Sir Roger Penrose OM FRS is an English mathematical physicist and Emeritus Rouse Ball Professor of Mathematics at the Mathematical Institute, University of Oxford and Emeritus Fellow of Wadham College...

    , Quantum Aspects of Life
    Quantum Aspects of Life
    Quantum Aspects of Life is a 2008 science text, with a foreword by Sir Roger Penrose, which notably explores the open question of the role of quantum mechanics at molecular scales of relevance to biology. The book adopts a debate-like style and contains chapters written by various world-experts;...

    , Imperial College Press
    Imperial College Press
    Imperial College Press was formed in 1995 and is a partnership between Imperial College of Science, Technology and Medicine in London and World Scientific publishing....

    , 2008, ISBN 978-1-84816-253-2.

External links

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