G
Gopalakrishnan Balasubramanian
Researcher at Max Planck Society
Publications - 38
Citations - 7910
Gopalakrishnan Balasubramanian is an academic researcher from Max Planck Society. The author has contributed to research in topics: Diamond & Magnetic field. The author has an hindex of 20, co-authored 38 publications receiving 6995 citations. Previous affiliations of Gopalakrishnan Balasubramanian include University of Göttingen & University of Stuttgart.
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Journal ArticleDOI
Nanoscale imaging magnetometry with diamond spins under ambient conditions
Gopalakrishnan Balasubramanian,I. Y. Chan,I. Y. Chan,Roman Kolesov,Mohannad Al-Hmoud,Julia Tisler,Chang S. Shin,Changdong Kim,Aleksander K. Wójcik,Philip R. Hemmer,Anke Krueger,Tobias Hanke,Alfred Leitenstorfer,Rudolf Bratschitsch,Fedor Jelezko,Jörg Wrachtrup +15 more
TL;DR: This work shows how magneto-optical spin detection can be used to determine the location of a spin associated with a single nitrogen-vacancy centre in diamond with nanometre resolution under ambient conditions, and demonstrates the use of a single diamond spin as a scanning probe magnetometer to map nanoscale magnetic field variations.
Journal ArticleDOI
Ultralong spin coherence time in isotopically engineered diamond
Gopalakrishnan Balasubramanian,Philipp Neumann,Daniel J. Twitchen,Matthew Markham,Roman Kolesov,Norikazu Mizuochi,Norikazu Mizuochi,Junichi Isoya,Jocelyn Achard,J. Beck,Julia Tissler,Vincent Jacques,Philip R. Hemmer,Fedor Jelezko,Jörg Wrachtrup +14 more
TL;DR: Here, it is demonstrated the synthesis and application of ultrapure isotopically controlled single-crystal chemical vapour deposition (CVD) diamond with a remarkably low concentration of paramagnetic impurities, and single electron spins show the longest room-temperature spin dephasing times ever observed in solid-state systems.
Journal ArticleDOI
Electric-field sensing using single diamond spins
Florian Dolde,Helmut Fedder,Marcus W. Doherty,Tobias Nöbauer,F. Rempp,Gopalakrishnan Balasubramanian,Thomas Wolf,Friedemann Reinhard,Lloyd C. L. Hollenberg,Fedor Jelezko,Joerg Wrachtrup +10 more
TL;DR: In this paper, point defects in diamond known as nitrogen-vacancy centres have been shown to be sensitive to minute magnetic fields, even at room temperature, and a demonstration that the spin associated with these defect centres is also sensitive to electric fields holds out the prospect of a sensor that can resolve single spins and single elementary charges at the nanoscale.
Journal ArticleDOI
Quantum register based on coupled electron spins in a room-temperature solid.
Philipp Neumann,Roman Kolesov,Boris Naydenov,J. Beck,F. Rempp,Matthias Steiner,Vincent Jacques,Gopalakrishnan Balasubramanian,Matthew Markham,Daniel J. Twitchen,S. Pezzagna,Jan Meijer,Jason Twamley,Fedor Jelezko,Jörg Wrachtrup +14 more
TL;DR: In this article, coherent coupling between two electron spins separated by almost 10 nm has been demonstrated, which might enable the construction of a network of connected quantum registers at room temperature, at this distance, the spins can be addressed individually.
Journal ArticleDOI
Dynamic Polarization of Single Nuclear Spins by Optical Pumping of Nitrogen-Vacancy Color Centers in Diamond at Room Temperature
Vincent Jacques,Philipp Neumann,J. Beck,Matthew Markham,Daniel J. Twitchen,Jan Meijer,Florian Kaiser,Gopalakrishnan Balasubramanian,Fedor Jelezko,Jörg Wrachtrup +9 more
TL;DR: A versatile method to polarize single nuclear spins in diamond, based on optical pumping of a single nitrogen-vacancy (NV) defect and mediated by a level anticrossing in its excited state is reported.