Phys. Rev. Lett. 108, 100501 - APS Link Manager
... the qubits in state jiA jiB (Fig. 1). Within the continuum limit of a classical crystal, Eint d2 =L for d aR , where d is the distance between the qubits and the ends of the quantum bus. Owing to quantum fluctuations, the classical crystal cannot be the true ground state, and the system is rat ...
... the qubits in state jiA jiB (Fig. 1). Within the continuum limit of a classical crystal, Eint d2 =L for d aR , where d is the distance between the qubits and the ends of the quantum bus. Owing to quantum fluctuations, the classical crystal cannot be the true ground state, and the system is rat ...
Heralded Single-Magnon Quantum Memory for Photon Polarization States
... The atomic-spin precession and the efficiency of the optical pumping are monitored via resonator transmission ^ polarized beam. In the frame of a weak, linearly (x-) rotating with the atomic spin, the probe beam polarization, and thus the coupling to the polarized atoms, change periodically with tim ...
... The atomic-spin precession and the efficiency of the optical pumping are monitored via resonator transmission ^ polarized beam. In the frame of a weak, linearly (x-) rotating with the atomic spin, the probe beam polarization, and thus the coupling to the polarized atoms, change periodically with tim ...
Numerical Renormalization Group Study of Random Transverse
... quantum phase transition is much stronger than on classical systems at temperature driven phase transitions. As first observed by McCoy 1) in a somewhat disguised version of a random transverse Ising chain, non-conventional scaling and off-critical singularities that lead to divergent susceptibilities ...
... quantum phase transition is much stronger than on classical systems at temperature driven phase transitions. As first observed by McCoy 1) in a somewhat disguised version of a random transverse Ising chain, non-conventional scaling and off-critical singularities that lead to divergent susceptibilities ...
Electronic Correlations in Transport through Coupled Quantum Dots V 82, N 17
... in Fig. 1). The Kondo temperature in this regime is of order TK c1 TK0 ec2 tyG , where the c’s are weakly dependent on tyG and TK0 ; We2pje0 jyG is the single-dot Kondo temperature. (The SBMFT yields c1 cosdy2 and c2 dy2.) The crucial content of that formula is that the coupled-dot Kondo tempe ...
... in Fig. 1). The Kondo temperature in this regime is of order TK c1 TK0 ec2 tyG , where the c’s are weakly dependent on tyG and TK0 ; We2pje0 jyG is the single-dot Kondo temperature. (The SBMFT yields c1 cosdy2 and c2 dy2.) The crucial content of that formula is that the coupled-dot Kondo tempe ...
Calculated electron dynamics in an electric field
... Recent advances allow the exploration of electron dynamics in atoms in a dynamical fashion @1–20# through the creation and detection of time-dependent electron waves. These waves are often called wave packets, although they may not be very localized in phase space. A pulsed laser field or a pulsed e ...
... Recent advances allow the exploration of electron dynamics in atoms in a dynamical fashion @1–20# through the creation and detection of time-dependent electron waves. These waves are often called wave packets, although they may not be very localized in phase space. A pulsed laser field or a pulsed e ...
Quasi Particle Tunneling in the Fractional Quantum Hall Regime
... fragile physics that gives rise to these amazing effects. An example is Superconductivity, where the electron-phonon interaction mediates an attractive electronelectron interaction. This makes it favorable for the electrons to form Cooper pairs and Bose condense[1]. The striking experimental signatu ...
... fragile physics that gives rise to these amazing effects. An example is Superconductivity, where the electron-phonon interaction mediates an attractive electronelectron interaction. This makes it favorable for the electrons to form Cooper pairs and Bose condense[1]. The striking experimental signatu ...
Detailed program - Ricardo Mendes Ribeiro
... CUHK in 2004, remaining there until his death. Over the years, including in the period 2009-2014, when he was suffering from cancer, he educated several students and postdoctoral fellows, taught undergraduate as well as graduate courses, and contributed to the physics department in many ways. Shi-Ji ...
... CUHK in 2004, remaining there until his death. Over the years, including in the period 2009-2014, when he was suffering from cancer, he educated several students and postdoctoral fellows, taught undergraduate as well as graduate courses, and contributed to the physics department in many ways. Shi-Ji ...
The quantum origins of the free induction decay signal and spin noise.
... However, it must be a very strange kind of spontaneous emission: Bloembergen and Pound (3) computed the half-life of an NMR excited state that one should expect to be associated with this relaxation mechanism. For a proton in a magnetic field of 10 4 oersteds [1 T], it turns out to be 10 25 seconds— ...
... However, it must be a very strange kind of spontaneous emission: Bloembergen and Pound (3) computed the half-life of an NMR excited state that one should expect to be associated with this relaxation mechanism. For a proton in a magnetic field of 10 4 oersteds [1 T], it turns out to be 10 25 seconds— ...
Topological Hunds rules and the electronic properties of a triple
... related to the interplay of the Fermi statistics and system topology. We term the set of rules established here and relating spin of the ground state to the filling of the shell, topology, and tunneling, ”topological Hunds rules”. The ability to tune tunneling by gates opens the possibility of direc ...
... related to the interplay of the Fermi statistics and system topology. We term the set of rules established here and relating spin of the ground state to the filling of the shell, topology, and tunneling, ”topological Hunds rules”. The ability to tune tunneling by gates opens the possibility of direc ...
Investigation of excitation energies and Hund`s rule in open shell
... |L = 0, S = 2i prediction for the ground state symmetry. However, for the N = 24 dot the occupied LSDA orbitals are |n, l, si = |1, ±4, ± 21 i resulting in an incorrect |L = 0, S = 0i prediction for the ground state symmetry. However, the |L = 0, S = 2i state with orbitals |n, l, si = |1, ±4, 12 i a ...
... |L = 0, S = 2i prediction for the ground state symmetry. However, for the N = 24 dot the occupied LSDA orbitals are |n, l, si = |1, ±4, ± 21 i resulting in an incorrect |L = 0, S = 0i prediction for the ground state symmetry. However, the |L = 0, S = 2i state with orbitals |n, l, si = |1, ±4, 12 i a ...
Chaotic ionization of a highly excited hydrogen atom
... in studying how classically chaotic dynamics is manifested in their quantum-mechanical counterparts. This is because Rydberg atoms provide a real non-separable physical system with just a few degrees of freedom whose classical counterpart exhibits chaos in external magnetic and combinations of magne ...
... in studying how classically chaotic dynamics is manifested in their quantum-mechanical counterparts. This is because Rydberg atoms provide a real non-separable physical system with just a few degrees of freedom whose classical counterpart exhibits chaos in external magnetic and combinations of magne ...
Phase switching in a voltage-biased Aharonov-Bohm interferometer Vadim I. Puller
... orbitals 共interacting arm兲, whereas the dot in the other arm of the interferometer 共reference arm兲 has only one level. The chemical potential is set out of resonance, so that the transport via the interacting arm occur only by means of cotunneling processes. The reference arm can be characterized by ...
... orbitals 共interacting arm兲, whereas the dot in the other arm of the interferometer 共reference arm兲 has only one level. The chemical potential is set out of resonance, so that the transport via the interacting arm occur only by means of cotunneling processes. The reference arm can be characterized by ...
Ferromagnetism
Not to be confused with Ferrimagnetism; for an overview see Magnetism.Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets. In physics, several different types of magnetism are distinguished. Ferromagnetism (including ferrimagnetism) is the strongest type: it is the only one that typically creates forces strong enough to be felt, and is responsible for the common phenomena of magnetism in magnets encountered in everyday life. Substances respond weakly to magnetic fields with three other types of magnetism, paramagnetism, diamagnetism, and antiferromagnetism, but the forces are usually so weak that they can only be detected by sensitive instruments in a laboratory. An everyday example of ferromagnetism is a refrigerator magnet used to hold notes on a refrigerator door. The attraction between a magnet and ferromagnetic material is ""the quality of magnetism first apparent to the ancient world, and to us today"".Permanent magnets (materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed) are either ferromagnetic or ferrimagnetic, as are other materials that are noticeably attracted to them. Only a few substances are ferromagnetic. The common ones are iron, nickel, cobalt and most of their alloys, some compounds of rare earth metals, and a few naturally-occurring minerals such as lodestone.Ferromagnetism is very important in industry and modern technology, and is the basis for many electrical and electromechanical devices such as electromagnets, electric motors, generators, transformers, and magnetic storage such as tape recorders, and hard disks.