研究室メンバーによるレギュラー・セミナー、 および、他研究室・機関からのゲスト・スピーカーのセミナーを開催しています。 レギュラー・セミナーは下記要領で行います。 Access map：理学部1号館 (Faculty of Science Bldg. 1) / 理学部4号館 (Faculty of Science Bldg. 4)
夏学期 / Summer semester (April-July 2026)
<Regular seminars (review of seminal papers)>木曜日15時から理学部１号館233号室で行います(普段と場所or時間の異なる場合は赤字で示します)。
Each seminar starts from 15:00, Thursday @ #233, Faculty of Science Bldg. 1 (unless otherwise indicated).
<Schedule>
Apr. 9 H. Li
"Spectral Gap and
Exponential Decay of Correlations"
Matthew B. Hastings and Tohru Koma, Commun. Math. Phys. 265, 781-804 (2006).
Apr. 16 Iyama
"Solution of 'Solvable
model of a spin glass'"
D. J. Thouless, P. W. Anderson, and R. G. Palmer, Philos. Mag. 35(3), 593-601 (1977).
Apr. 23 Yamada
"Emergent Hydronamics
in Integrable Quantum Systems Out of Equilibrium"
O. A. Castro-Alvaredo, B. Doyon, and T. Yoshimura, Phys. Rev. X 6, 041065 (2016).
Apr. 30 Hokkyo (online)
"Symmetry breaking in Heisenberg
antiferromagnets"
T. Koma and H. Tasaki, Commun. Math. Phys. 158, 191 (1993).
May. 7 (No seminar)
May. 14 (No seminar)
May. 21 (No seminar)
May. 28 Ishii (online)
"Minimum mean-squared
error of estimates in quantum statistics"
C.W. Helstrom, Physics Letters A
25, 101 (1967).
"Multiple-parameter quantum estimation and
measurement of nonselfadjoint observables"
H.P. Yuen
and M. Lax, IEEE Transactions on Information Theory 19, 740 (1973).
Jun. 4 Sugiura (online)
"Fault-tolerant quantum computation by anyons"
Alexei Yu. Kitaev, Annals of Physics 303, 2-30 (2003).
Jun. 11 (No seminar)
Jun. 18 Yutani
"On the generators of quantum dynamical semigroups"
G. Lindblad, Commun. Math. Phys. 48, 119 (1976).
Jun. 25 (No seminar)
Jul. 2 Oyaizu
"Topological quantum memory"
E. Dennis, A. Kitaev, A. Landahl, and J. Preskill, J. Math. Phys. 43, 4452 (2002).
Jul. 9 Tanii
"Neural networks and physical systems with emergent collective computational abilities"
J. J. Hopfield, Proc. Natl. Acad. Sci. 79, 2554 (1982).
Jul. 16 H. Nakagawa
"Diatomic molecules and Cooper pairs"
A. J. Leggett, Modern Trends Theor. Cond. Mat. 115, 13 (1980).
冬学期 / Winter semester (October 2026-January 2027)
木曜日16時から理学部１号館233号室で行います(普段と場所or時間の異なる場合は赤字で示します)。Each seminar starts from 16:00, Thursday @ #233, Faculty of Science Bldg. 1 (unless otherwise indicated).
<Schedule>
10/8 Sugiura / Yukawa (from 15:00)
10/15 Morita / Saboo (from 15:00)
10/22 Hokkyo (from 15:00)
10/29 Iyama
11/5 (No seminar)
11/12 Yamada
11/19 Nakanishi (@414)
11/26 Kai Li
12/3 Gong (@913)
12/10 (No seminar)
12/17 (No seminar)
12/24 Yutani
12/31 (No seminar)
1/7 Nakagawa
1/14 Ishii (online)
1/21 Oyaizu
1/28 B4 / B4
| speaker | Shuma Sugiura |
| title | TBA |
| abstract | TBA |
| speaker | Emi Yukawa |
| title | Information Retrieval from Noisy Squeezed Spin States via Bayesian Optimization |
| abstract | Quantum entanglement is often masked in noisy environments. When frequencies of spins in a spin ensemble vary due to inhomogeneous broadening, the squeezing parameter degrades and it becomes difficult for the sensitivity of Ramsey interferometry to go beyond the standard quantum limit. In this presentation, we show that the masked information about a magnetic field encoded in a squeezed spin state can be retrieved by measuring an appropriate linear combination of a magnetic dipole and quadrupoles by means of the Bayesian optimization method. |
| speaker | Yusuke Morita |
| title | TBA |
| abstract | TBA |
| speaker | Arpana Saboo |
| title | TBA |
| abstract | TBA |
| speaker | Akihiro Hokkyo |
| title | TBA |
| abstract | TBA |
| speaker | Naoki Iyama |
| title | TBA |
| abstract | TBA |
| speaker | Shozo Yamada |
| title | TBA |
| abstract | TBA |
| speaker | Ken Nakanishi |
| title | TBA |
| abstract | TBA |
| speaker | Kai Li |
| title | TBA |
| abstract | TBA |
| speaker | Ming Gong |
| title | TBA |
| abstract | TBA |
| speaker | Ryota Yutani |
| title | TBA |
| abstract | TBA |
| speaker | Masaya Nakagawa |
| title | TBA |
| abstract | TBA |
| speaker | Takanao Ishii |
| title | TBA |
| abstract | TBA |
| speaker | Atsushi Oyaizu |
| title | TBA |
| abstract | TBA |
| speaker | B4 |
| title | TBA |
| abstract | TBA |
| speaker | B4 |
| title | TBA |
| abstract | TBA |