К
100-летию со дня рождения Матвея Петровича Бронштейна (2 декабря 1906) и
70-летию его «исчезновения» (6 августа 1937)
Физики о М. П. Бронштейне
1948 В.А.Фок
1957 Л.Д.Ландау
1967 И.Е.Тамм
1995 John
Stachel
2004 Claus Kiefer
2004 Carlo Rovelli
2006 Lee Smolin

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... Работа (2)
Иваненко и Соколова озаглавлена "Квантовая теория гравитации". Это
заглавие не соответствует ее содержанию; правильнее было бы озаглавить
работу более скромно, например, "Упрощенное изложение квантовой теории
гравитации". Дело в том, что квантовая теория гравитации создана
ленинградским физиком М.П.Бронштейном в его работе "Квантование
гравитационных волн" (ЖЭТФ, т.6, с.195-236), напечатанной в 1936 году.
Иваненко и Соколов используют результаты работы Бронштейна, хотя нигде
в тексте на нее не ссылаются. <...> Каковы бы ни были причины,
побудившие авторов замалчивать достижения Бронштейна, их работу никак
нельзя рассматривать как построение квантовой теории гравитации, ибо
такая теория была создана Бронштейном за 11 лет до них. ... 2 апреля 1948
г.
Академик В.Фок |
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Л.Д.Ландау. Предисловие к переизданию книги
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"К
середине 20-х годов появились еще немногочисленные выдающиеся
исследования, навсегда оставшиеся в мировой теоретической физике. Бурно
стала расти талантливая молодежь — люди, которым в это время было около
20 лет. В настоящее время их надо отнести уже ко «второму старшему
поколению», и их яркими представителями явились Л. Д. Ландау, А. А.
Андронов и другие. Некоторые исключительно яркие и многообещающие
физики этого поколения безвременно погибли (М. П. Бронштейн, С. П.
Шубин, А. А. Витт)" |
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“History of
Relativity”
in “Twentieth century physics”. Eds. Laurie M. Brown, Abraham Pais, Sir
Brian Pippard. Philadelphia, PA. : Institute of Physics Pub., 1995.
“The early
history of quantum gravity" in “Black Holes, Gravitational
radiation and the Universe,” B. R. Iyer and
B. Bhawai (eds.) (Kluwer Academic Publisher, Netherlands 1999).
Although the final formalism for quantum
gravity is
not yet at hand, the Bohr–Rosenfeld analysis can at least formally be
extended
to the gravitational field, cf. Bronstein (1936), DeWitt (1962) and von
Borzeszkowski and Treder (1988).
The history of
these early explorations of the quantum properties of spacetime has
been
recently reconstructed by John Stachel [317]. In particular, John
describes in
his paper the extensive, but largely neglected, work conducted in the
mid
thirties by a Russian physicist, Matvei Petrovich Bronstein. Persistent
rumors
claim that Bronstein was nephew of Leon Trotsky, and that he hid this
relation
that became dangerous, but Gennady Gorelik (of the Center for
Philosophy and
History of Science at Boston University and Institute for the History
of
Science and Technology of the Russian Academy of Sciences) assures me
that this
rumor is false. Bronstein re-derives the Rosenfeld-Pauli quantization
of the
linear theory, but realizes that the unique features of gravitation
require a
special treatment, when the full nonlinear theory is taken into
account. He
realizes that field quantization techniques must be generalized in such
a way
as to be applicable in the absence of a background geometry. In
particular, he
realizes that the limitation posed by general relativity on the mass
density
radically distinguishes the theory from quantum electrodynamics and
would
ultimate lead to the need to "reject Riemannian geometry" and perhaps
also to "reject our ordinary concepts of space and time" [318]. The
reason Bronstein has remained unknown for so long has partly to do with
the
fact that he was executed by the Soviet State Security Agency (the
NKVD) at the
age of 32. I am told that in Russia some still remember Bronstein as
"smarter than Landau" (but Gorelik doubts this opinion could be
shared by a serious physicist.) For a discussion of Bronstein's early
work in
quantum gravity see [319].
[317] J Stachel, "Early history of quantum
gravity (1916-1940)", Presented at
the HGR5, Notre Dame, July 1999. J Stachel, "Early history of quantum
gravity" in 'Black Holes, Gravitational radiation and the Universe, B R
Iyer, B Bhawal eds, (Kluwer Academic Publisher, Netherlands 1999).
[318] M P Bronstein
"Quantentheories schwacher Gravitationsfelder", Physikalische
Zeitschrift der Sowietunion 9 (1936) 140.
[319] G E
Gorelik,
"First Steps of Quantum Gravity and the Planck Values" in Studies
in the history of general relativity. [Einstein Studies, vol 3], eds J
Eisenstaedt
and AJ Kox, p364-379 (Birkhaeuser, Boston 1992). G E Gorelik, V Y
Frenkel.
Matvei Petrovic Bronstein and the Soviet Theoretical Physics in the
Thirties
(Birkhauser Verlag, Boston 1994).
Probably the first
PhD thesis ever written on the problem of quantum gravity was the 1935
dissertation of the Russian physicist Matvei Petrovich Bronstein. Those
who
recall him think of him as one of the two most brilliant Soviet
physicists of
his generation. He wrote in a 1936 paper that "the elimination of the
logical inconsistencies [requires] rejection of our ordinary concepts
of space
and time, modifying them by some much deeper and nonevident concepts."
Then he quoted a German proverb, "Let him who doubt it pay a Thaler."
3 Вronstein's view was championed by a brilliant
young
French physicist, Jacques Solomon.
By now almost
everyone who thinks seriously about quantum gravity agrees with
Bronstein, but
it has taken seventy years. One reason is that even such brilliant
minds as
Bronstein and Solomon could not escape the insanity of their
time. A year
after Bronstein wrote the paper I just quoted, he was arrested by the
NKVD, and
he was executed by a firing squad on February 18, 1938. Solomon became
a member
of the French Resistance and was killed by the Germans on May 23, 1942.
Their
ideas were lost to history. I have worked on the problem of quantum
gravity all
my life and I learned of them only while finishing this book.
The work of
Bronstein was forgotten, and most physicists returned to the study of
quantum
field theory. As I described in chapter 4, it took until the late
1940s for
QED to be developed. This success then inspired a few people to take
up again
the challenge of unifying gravity with quantum theory. Right away, two
opposing
camps sprang up. One of them followed Bronstein in taking the
background
independence of general relativity seriously. The other ignored
background
independence and followed Heisenberg and Pauli's route in their efforts
to
apply quantum theory to gravitational
waves
seen as moving on a fixed background.
3 M. P. Bronstein, "Quantization of
gravitational
waves," Zh. Eksp. Teor. Fiz.
6 (1936), p. 195. For
more information about
Bronstein, see [John] Stachel in
Conceptual Foundations [of Quantum Field Theory, Cambridge University Press, 1999], and also G. Gorelik,
"Matvei Bronstein and Quantum
Gravity: 70th Anniversary of the Unsolved
Problem," Physics-Uspekhi,
48:10 (2005).