Events

Events

The 2nd Cadet Bar

2014.5.15(Thu)

Location: Technoaliance 2F seminar room @Suita Campus
Date: May 15 (Thu.), 2014 15:00-17:00
Lecturer: Assoc.Prof. Seiji Matsuo

The 2nd Solid-State Physics Seminar

2014.5.15(Thu)

NV centers in diamond – solid state spins applied in quantum registers and as multipurpose nanoscale probes

Lecturer: Dr. Philipp Neumann

(3. Physikalisches Institut, Stuttgart University, Germany)

Time: 14:40-16:10, 15th (Thu) May, 2014

Place: B300 (3F of Buld. B, Graduate School of Engineering Science)

abstract:

Single nitrogen-vacancy (NV) defect centers in diamond are extraordinary color centers with a remarkable set of properties. First, they are optically addressable at the single level. The latter gives access to the ground state electronic spin triplet, which can be optically initialized and read out. Furthermore, at room temperature coherence times (a few milliseconds) are long compared to manipulation times (down to nanoseconds) mainly due to recent advances synthetic diamond quality.

In recent years, NV center spins were used to detect tiny magnetic fields and proximal electron and nuclear spins. While the first application opens up many possibilities for quantum metrology especially at the nanometer scale, the second application has led to small, functional quantum registers. Particularly, 13C nuclear spins in the diamond lattice and near NV centers were used to create non-local quantum states. [1, 2]

Here, we are going to present novel knowledge about the NV center’s electronic and spin properties which allows improving sensing capabilities. As an example, the NV electron spin can be made sensitive to further quantities like temperature, electric fields and lattice strain. Very recently, we achieved the detection of a single elementary charge at room temperature. [3]

Furthermore, we presenting recent achievements in scaling our solid state spin registers. On the one hand, we couple and entangle proximal NV electron spins via their mutual magnetic dipole interaction. On the other hand, individual NV centers are equipped with several nuclear spins to demonstrate essential quantum algorithms. As a prominent example, we protect stored quantum coherences against dephasing via quantum error correction. [4] The latter is essential for any scalable architecture of quantum computation or long-range quantum communication via quantum repeaters.

As the high fidelity spin control becomes challenging in continuously growing registers we started applying optimal control techniques. We will show recent applications and discuss the scalability of this approach.

[1] P. Neumann, N. Mizuochi, et al.,Science 320, 1326 (2008).

[2] P. Neumann et al., Science 329, 5991 (2010).

[3] F. Dolde,P. Neumann et al., Phys. Rev. Lett. 112, 097603 (2014).

[4] G. Waldherr, P. Neumann et al., Nature, 506, 7487 (2014).

 

 

Contact information : Norikazu MIZUOCHI 

Tel:06-6850-6426, E-mail:mizuochi@mp.es.osaka-.ac.jp

The 1st Solid-State Physics Seminar

2014.5.7(Wed)

Date : May 7 (Wed) 14:40-16:10
Place: Graduate School of Engineering Science B301
Lecturer: Assoc. Prof. Yoshinori Onose(Tokyo Univ.)
Title:Topological effects in magnetic materials

 

New Cadet Student Orientation 2014

2014.4.1(Tue)

Date : April 1, 2014 16:00-17:30
Place : Engineering Science International Hall, Seminar Room

sigmahall

 

As an incoming student, you are about to embark on an exciting new phase in your life. The Orientation, Advising, and Registration of Cadet Core Program is designed to familiarize you with Cadet Program, provide you with academic advising, and enable you to register for classes. We hope you complete orientation feeling confident about starting Interactive Materials Science Cadet Program.

Orientation Get-Together Party

Date : April 1, 2014 18:00-17:30   (Reception 17:40〜)
Place : Engineering Science International Hall, Foyer

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Cadet Bar

2014.4.1(Tue)

Date : April 1, 2014  15:00-17:30
Place : J Build. B07 Cadet Room
Talker : Prof. Masatoshi Takao
(Osaka University Research Administrator)
Title : "Strategies to improve energy problems through nuclear issue"

DSC_0502D

New Cadet Student Orientation 2014 will be held on April 1st, Tuesday.

2014.4.1(Tue)

Date : April 1, 2014 16:00-17:30
Place : Engineering Science International Hall, Seminar Room

sigmahall

As an incoming student, you are about to embark on an exciting new phase in your life. The Orientation, Advising, and Registration of Cadet Core Program is designed to familiarize you with Cadet Program, provide you with academic advising, and enable you to register for classes. We hope you complete orientation feeling confident about starting Interactive Materials Science Cadet Program.

Orientation Get-Together Party

Date : April 1, 2014 18:00-17:30 (Reception 17:40〜)
Place : Engineering Science International Hall, Foyer

ホワイエ

Visit/Tour SPring-8 (RIKEN Harima Branch)

2014.2.28(Fri)

spring-8

 

SPring-8 is a large synchrotron radiation facility which delivers the most powerful synchrotron radiation currently available.

The 1st Equipment Platform “Maido” explanatory meeting

2014.2.26(Wed)

Date : Feb. 26, 2014 13:00-14:00
Place : H Science Build. Communication Space in front of H301

We will explain some laboratory instruments and chemistry apparatus belonging to the collection associated with Cadet Program in department of science laboratory. After a brief explanation of our platform "Maido", we will have a series of tours of the experimental facilities in the following.

Lab.                                Place

Toyota Lab.                   H222
Tajima Lab.                  H120
Tajima Lab.                  H120
Hanasaki Lab.             H123
Kobayashi Lab.            H002
Aoshima Lab.               G619
Nakazawa Lab.            C328

1st KANSAI Nanoscience and Nanotechnology International Symposium

2014.2.3(Mon)

1st KANSAI Nanoscience and Nanotechnology International Symposium

Date : Feb. 3-4, 2014
Location : Senri Life Science Center, Osaka, Japan

poster

The 1st Japan-Taiwan-Singapore Joint Symposium on Coordination Chemistry

2013.6.29(Sat)

The 1st Japan-Taiwan-Singapore Joint Symposium on Coordination Chemistry
Date : Jun. 29th, 2013
Location : Engineering Science International Hall, Osaka University

Suppoted by JSPS Program for Leading Graduate Schools "Interacitive Materials Science Cadet Program"

PAGETOP