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of 39
pro vyhledávání: '"Tomita, Takafumi"'
Autor:
Tomita, Takafumi, Chew, Yuki Torii, Villela, Rene, Mahesh, Tirumalasetty Panduranga, Sakai, Hiroto, Nishimura, Keisuke, Ando, Taro, de Léséleuc, Sylvain, Ohmori, Kenji
Sub-micrometer scale light patterns play a pivotal role in various fields, including biology, biophysics, and AMO physics. High-resolution, in situ observation of light profiles is essential for their design and application. However, current methods
Externí odkaz:
http://arxiv.org/abs/2410.03241
Autor:
Mahesh, Tirumalasetty Panduranga, Matsubara, Takuya, Chew, Yuki Torii, Tomita, Takafumi, de Léséleuc, Sylvain, Ohmori, Kenji
Atoms in Rydberg states are an important building block for emerging quantum technologies. While the excitation to the Rydberg orbitals are typically achieved in more than tens of nanoseconds, the physical limit is in fact much faster, at the ten pic
Externí odkaz:
http://arxiv.org/abs/2408.02324
Autor:
Chew, Yuki Torii, Poitrinal, Martin, Tomita, Takafumi, Kitade, Sota, Mauricio, Jorge, Ohmori, Kenji, de Léséleuc, Sylvain
Neutral atoms trapped in microscopic optical tweezers have emerged as a growing platform for quantum science. Achieving homogeneity over the tweezers array is an important technical requirement, and our research focuses on improving it for holographi
Externí odkaz:
http://arxiv.org/abs/2407.20699
Autor:
Bharti, Vineet, Sugawa, Seiji, Kunimi, Masaya, Chauhan, Vikas Singh, Mahesh, Tirumalasetty Panduranga, Mizoguchi, Michiteru, Matsubara, Takuya, Tomita, Takafumi, de Léséleuc, Sylvain, Ohmori, Kenji
Rydberg atoms in optical lattices and tweezers is now a well established platform for simulating quantum spin systems. However, the role of the atoms' spatial wavefunction has not been examined in detail experimentally. Here, we show a strong spin-mo
Externí odkaz:
http://arxiv.org/abs/2311.15575
Publikováno v:
Phys. Rev. A 110, 043312 (2024)
We have developed a method to simulate quantum spin models with the Dzyaloshinskii-Moriya interaction (DMI) using Rydberg atom quantum simulators. Our approach involves a two-photon Raman transition and a transformation to the spin-rotating frame, bo
Externí odkaz:
http://arxiv.org/abs/2306.05591
Autor:
Chew, Yeelai, Tomita, Takafumi, Mahesh, Tirumalasetty Panduranga, Sugawa, Seiji, de Léséleuc, Sylvain, Ohmori, Kenji
Publikováno v:
Nature Photonics 16, 724 (2022)
Rydberg atoms, with their giant electronic orbitals, exhibit dipole-dipole interaction reaching the GHz range at a distance of a micron, making them a prominent contender for realizing quantum operations well within their coherence time. However, suc
Externí odkaz:
http://arxiv.org/abs/2111.12314
Autor:
Tomita, Takafumi
0048
甲第21549号
理博第4456号
新制||理||1640(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
甲第21549号
理博第4456号
新制||理||1640(附属図書館)
学位規則第4条第1項該当
Doctor of Science
Kyoto University
DFAM
Externí odkaz:
http://hdl.handle.net/2433/242587
Akademický článek
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Publikováno v:
Phys. Rev. A 99, 031601 (2019)
We report an experimental study of dynamics of the metastable $^3P_2$ state of bosonic ytterbium atoms in an optical lattice. The dissipative Bose-Hubbard system with on-site two-body atom loss is realized via its intrinsic strong inelastic collision
Externí odkaz:
http://arxiv.org/abs/1809.09989
Publikováno v:
Science Advances 3, e1701513 (2017)
Dissipation is ubiquitous in nature and plays a crucial role in quantum systems such as causing decoherence of quantum states. Recently, much attention has been paid to an intriguing possibility of dissipation as an efficient tool for preparation and
Externí odkaz:
http://arxiv.org/abs/1705.09942