Zobrazeno 1 - 10
of 225
pro vyhledávání: '"Iso, Satoshi"'
We propose an experiment for constructing a spatial cat state of a suspended mirror with an order of $\mathcal{O}$(mg). The mirror is set at the center of two mirrors, creating two optical cavities and optical springs. The induced potential exhibits
Externí odkaz:
http://arxiv.org/abs/2404.08435
Autor:
Hatakeyama, Kosei, Miki, Daisuke, Tani, Masaki, Yamasaki, Yuuki, Iso, Satoshi, Adam, Apriadi Salim, Rohim, Ar, Yamamoto, Kazuhiro
We investigate the violation of the Leggett-Garg inequalities for a harmonic oscillator in various quantum states. We focus on the two-time quasi-probability distribution function with a dichotomic variable constructed with the position operator of a
Externí odkaz:
http://arxiv.org/abs/2310.16471
We investigate string amplitudes by using the partial modular transformation which we introduced in our previous works. This enables us to extract stringy threshold corrections from the full string amplitudes and interpret them in terms of the Wilson
Externí odkaz:
http://arxiv.org/abs/2303.16608
Entanglement Generation and Decoherence in a Two-Qubit System Mediated by Relativistic Quantum Field
Motivated by the Bose et al.-Matletto-Vedral (BMV) proposal for detecting quantum superposition of spacetime geometries, we study a toy model of a quantum entanglement generation between two spins (qubits) mediated by a relativistic free scalar field
Externí odkaz:
http://arxiv.org/abs/2211.09441
Entanglement generation by Newtonian gravitational potential between objects has been widely discussed to reveal the quantum nature of gravity. In this paper, we perform a quantum field theoretical analysis of a slightly modified version of the gedan
Externí odkaz:
http://arxiv.org/abs/2205.08403
Extra-dimensional components of gauge fields in higher-dimensional gauge theories will play a role of the Higgs field and become tachyonic after Kaluza-Klein compactifications on internal spaces with (topologically nontrivial) gauge field backgrounds
Externí odkaz:
http://arxiv.org/abs/2111.06508
Publikováno v:
Symmetry 13 (2021) 1221
This is a continuation of our previous works on entanglement entropy (EE) in interacting field theories. In arXiv:2103.05303, we have proposed the notion of $\mathbb{Z}_M$ gauge theory on Feynman diagrams to calculate EE in quantum field theories and
Externí odkaz:
http://arxiv.org/abs/2105.14834
Publikováno v:
Phys. Rev. D 104, 063525 (2021)
Axion-CMB scenario is an interesting possibility to explain the temperature anisotropy of the cosmic microwave background (CMB) by primordial fluctuations of the QCD axion \cite{Iso:2020pzv}. In this scenario, fluctuations of radiations are generated
Externí odkaz:
http://arxiv.org/abs/2105.06803
Publikováno v:
Phys. Rev. D 103, 125019 (2021)
This is an extended version of the previous paper arXiv:2103.05303 to study entanglement entropy (EE) of a half space in interacting field theories. In the previous paper, we have proposed a novel method to calculate EE based on the notion of $\mathb
Externí odkaz:
http://arxiv.org/abs/2105.02598
Publikováno v:
Phys. Rev. D 103, 105010 (2021)
Entanglement entropy (EE) in interacting field theories has two important issues: renormalization of UV divergences and non-Gaussianity of the vacuum. In this letter, we investigate them in the framework of the two-particle irreducible formalism. In
Externí odkaz:
http://arxiv.org/abs/2103.05303