Berthold-Georg Englert (born 1953) is Provost's Chair Professor at the

Beijing Institute of Technology The Beijing Institute of Technology (BIT) is a Public university, public, Comprehensive school, comprehensive, Research university, research university located in Haidian District, Haidian District, Beijing City, China. The university is part o ...

, and Principal Investigator at the

Centre for Quantum Technologies The Centre for Quantum Technologies (CQT) in Singapore is a Research Centre of Excellence hosted by the National University of Singapore. The Centre brings together physicists, computer scientists and engineers to do basic research on quantum ph ...

. In 2006, he was recognized for outstanding contributions to theoretical research on quantum coherence. Englert's principal research interests concern applications in

quantum information science Quantum information science is a field that combines the principles of quantum mechanics with information theory to study the processing, analysis, and transmission of information. It covers both theoretical and experimental aspects of quantum phys ...

, but he is also known for his early work on

quantum optics Quantum optics is a branch of atomic, molecular, and optical physics and quantum chemistry that studies the behavior of photons (individual quanta of light). It includes the study of the particle-like properties of photons and their interaction ...

together with

Marlan Scully Marlan Orvil Scully (born August 3, 1939) is an American physicist best known for his work in theoretical quantum optics. He is a professor at Texas A&M University and Princeton University. Additionally, in 2012 he developed a lab at the Baylor ...

Texas A&M University Texas A&M University (Texas A&M, A&M, TA&M, or TAMU) is a public university, public, Land-grant university, land-grant, research university in College Station, Texas, United States. It was founded in 1876 and became the flagship institution of ...

Education and career

Englert studied physics at the

University of Tübingen The University of Tübingen, officially the Eberhard Karl University of Tübingen (; ), is a public research university located in the city of Tübingen, Baden-Württemberg, Germany. The University of Tübingen is one of eleven German Excellenc ...

and obtained his Ph.D. in Physics there in 1981. He did post-doctoral research at the

Ludwig Maximilian University of Munich The Ludwig Maximilian University of Munich (simply University of Munich, LMU or LMU Munich; ) is a public university, public research university in Munich, Bavaria, Germany. Originally established as the University of Ingolstadt in 1472 by Duke ...

(LMU) and obtained his Dr. rer. nat. habil. in 1990. Subsequently he worked as a researcher at LMU until 1995 and then held different visiting professorships in Europe and the United States until he joined the faculty of the National University of Singapore in 2003. Englert was named

American Physical Society The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of ...

(APS) Outstanding Referee in 2008, he is Fellow of the Institute of Physics Singapore (IPS) since 2012, Fellow of the APS since 2015, and recipient of the IPS President Medal for 2019. He is the Scientific Secretary of the

Julian Schwinger Julian Seymour Schwinger (; February 12, 1918 – July 16, 1994) was a Nobel Prize-winning American theoretical physicist. He is best known for his work on quantum electrodynamics (QED), in particular for developing a relativistically invariant ...

Foundation.

Scientific contributions

Englert is the author of more than 180 publications in the fields of atomic, molecular and optical physics.List of publications
/ref> As of November 2023 his research has been cited more than 7,600 times for a h index of 41. Englert's most cited works are from the areas of quantum optics and quantum information. With Marlan Scully and

Herbert Walther Herbert Walther (January 19, 1935 in Ludwigshafen/Rhein, Germany – July 22, 2006 in Munich) was a leader in the fields of quantum optics and laser physics. He was a founding director of the Max Planck Institute of Quantum Optics (MPQ) in Garchin ...

, he proposed a quantum optical test of quantum mechanical complementarity. He also derived an inequality by which the visibility of interference fringes in

interferometer Interferometry is a technique which uses the '' interference'' of superimposed waves to extract information. Interferometry typically uses electromagnetic waves and is an important investigative technique in the fields of astronomy, fiber opt ...

experiments sets an upper bound on the which-way information available. In 1998 he studied with three co-authors he studied the interaction of two

ultracold atom In condensed matter physics, an ultracold atom is an atom with a temperature near absolute zero. At such temperatures, an atom's quantum-mechanical properties become important, especially through what's known as a "superfluid", such as Superfl ...

s in a three-dimensional trap and obtained an analytical solution which extended the previously know one- and two-dimensional limiting cases to the more realistic three-dimensional one. He is co-author of frequently cited reviews on

cavity quantum electrodynamics Cavity Quantum Electrodynamics (cavity QED) is the study of the interaction between light confined in a reflective cavity and atoms or other particles, under conditions where the quantum nature of photons is significant. It could in principle be ...

and on

mutually unbiased bases In quantum information theory, a set of bases in Hilbert space C''d'' are said to be mutually unbiased if when a system is prepared in an eigenstate of one of the bases, then all outcomes of the measurement with respect to the other basis are pr ...

. He edited and published ''Symbolism of Atomic Measurements'' based on lecture notes by Julian Schwinger, which has been called „a delight and a wonderful resource to a theoretical physicist“ and judged to come as close as possible to the „definitive textbook“ on

quantum mechanics Quantum mechanics is the fundamental physical Scientific theory, theory that describes the behavior of matter and of light; its unusual characteristics typically occur at and below the scale of atoms. Reprinted, Addison-Wesley, 1989, It is ...

that Schwinger had intended to write.

Honors and awards

In 2015, Englert was inducted as a fellow of the

for "distinctive theoretical contributions to the foundations, interpretation, and applications of quantum mechanics".

References

External links

Berthold-Georg Englert's homepage
at the National University of Singapore {{DEFAULTSORT:Englert, Berthold-Georg 20th-century German physicists 21st-century German physicists German quantum physicists German theoretical physicists Ludwig Maximilian University of Munich alumni Academic staff of the National University of Singapore German science writers German male non-fiction writers Fellows of the American Physical Society 1953 births Living people

Education and career

Scientific contributions

Honors and awards

See also

References

External links