Spin-current-induced charge accumulation and electric
... with the charge accumulation in the corresponding strip system in terms of that the additional leads act just as the pathways for the accumulated charges to flow through. Specifically, when ␣ ⬍ 0, charges accumulated at the lateral edges will flow outward through the two transverse leads and, at the ...
... with the charge accumulation in the corresponding strip system in terms of that the additional leads act just as the pathways for the accumulated charges to flow through. Specifically, when ␣ ⬍ 0, charges accumulated at the lateral edges will flow outward through the two transverse leads and, at the ...
Quantum Field Theory in Condensed Matter Physics 2nd Ed.
... the interactions are large at the level of a bare many-body Hamiltonian, but effectively vanish for the low energy excitations. This takes place in quantum electrodynamics in (3 + 1) dimensions and in Fermi liquids, where scattering of quasi-particles on the Fermi surface changes only their phase (f ...
... the interactions are large at the level of a bare many-body Hamiltonian, but effectively vanish for the low energy excitations. This takes place in quantum electrodynamics in (3 + 1) dimensions and in Fermi liquids, where scattering of quasi-particles on the Fermi surface changes only their phase (f ...
Power-Law Entanglement Spectrum in Many-Body Localized
... C{µ}L {τ }R ≈ h{µ}L |SL/2 |{↑}L ih{τ }R |SL/2+1 |{↑}R i/∆. The typical value of C corresponds to when both matrix elements flip a similar number of spins. The value of κ can be approximated as 2κ ≈ 2κ0 + ln 2, where κ0 governs the decay of the many-body analogue of the Thouless conductance G, introd ...
... C{µ}L {τ }R ≈ h{µ}L |SL/2 |{↑}L ih{τ }R |SL/2+1 |{↑}R i/∆. The typical value of C corresponds to when both matrix elements flip a similar number of spins. The value of κ can be approximated as 2κ ≈ 2κ0 + ln 2, where κ0 governs the decay of the many-body analogue of the Thouless conductance G, introd ...
Hexagonal Plaquette Spin-spin Interactions and Quantum
... represents Ising interactions around each hexagonal-plaquette, and the second term (with J⊥ ) describes the nearest-neighbour spin exchange interaction (we consider here the variant of the BFG discussed in Ref. [7, 8], where only nearest-neighbor exchange is included). The underlying source of frust ...
... represents Ising interactions around each hexagonal-plaquette, and the second term (with J⊥ ) describes the nearest-neighbour spin exchange interaction (we consider here the variant of the BFG discussed in Ref. [7, 8], where only nearest-neighbor exchange is included). The underlying source of frust ...
Non-equilibrium and local detection of the normal fraction of a
... units of the inverse square of the de Broglie thermal wavelength), independent from the details of the system [1, 2]. At the transition point, the asymptotic behavior of the field correlation function changes from an exponential to a power-law decay at large distances. In contrast to the three-dimen ...
... units of the inverse square of the de Broglie thermal wavelength), independent from the details of the system [1, 2]. At the transition point, the asymptotic behavior of the field correlation function changes from an exponential to a power-law decay at large distances. In contrast to the three-dimen ...
Mean spin direction and spin squeezing in superpositions of spin
... integer N = 2j, Sn⊥ = S ◦ n⊥ , and j is the spin number. The inequality ξ 2 < 1 indicates that the system is spin squeezed. In this paper, we study the MSD and spin squeezing in a general superpositions of two spin coherent states (SCSs) [24], the study of the MSD is important at least for the follo ...
... integer N = 2j, Sn⊥ = S ◦ n⊥ , and j is the spin number. The inequality ξ 2 < 1 indicates that the system is spin squeezed. In this paper, we study the MSD and spin squeezing in a general superpositions of two spin coherent states (SCSs) [24], the study of the MSD is important at least for the follo ...
Quantum rings for beginners: energy spectra and persistent currents
... these previous approaches to the Luttinger liquid formalism (Section 14), and introduce pair correlation functions as a tool to study the internal structure of the many-electron state (Section 15). Most of the review will deal with rings where the external magnetic 8ux penetrates the ring in such a ...
... these previous approaches to the Luttinger liquid formalism (Section 14), and introduce pair correlation functions as a tool to study the internal structure of the many-electron state (Section 15). Most of the review will deal with rings where the external magnetic 8ux penetrates the ring in such a ...
Naturalness via scale invariance and non-trivial UV fixed points in a 4d O(N) scalar field model in the large-N limit
... actions when regulators are removed. It is the latter that is physically observable and defines the theory. Such a scenario is not amenable to analysis via the loop expansion, traditional perturbation theory or a weak field expansion in powers of the scalar field. In particular, we give up perturba ...
... actions when regulators are removed. It is the latter that is physically observable and defines the theory. Such a scenario is not amenable to analysis via the loop expansion, traditional perturbation theory or a weak field expansion in powers of the scalar field. In particular, we give up perturba ...
Atomic epn(ep) Spin Models and Spectral Lines
... In order to find the evidence which the atoms have 4 kinds of the orbital spins, we looked over the line spectra from hydrogen to the atoms which we can figure out. It is recorded that the gas, hydrogen ( 11 H ) whose atomic spin models are shown in Figure 1 has 8 line spectra which are recorded in ...
... In order to find the evidence which the atoms have 4 kinds of the orbital spins, we looked over the line spectra from hydrogen to the atoms which we can figure out. It is recorded that the gas, hydrogen ( 11 H ) whose atomic spin models are shown in Figure 1 has 8 line spectra which are recorded in ...
Quantum field theory for matter under extreme conditions
... in the structure of, and interactions between, hadrons. This was once particle physics but that has since moved to higher energy in search of a plausible grand unified theory and extensions of the so-called Standard Model. The only high-energy physicists still focusing on hadron physics are those pe ...
... in the structure of, and interactions between, hadrons. This was once particle physics but that has since moved to higher energy in search of a plausible grand unified theory and extensions of the so-called Standard Model. The only high-energy physicists still focusing on hadron physics are those pe ...
3 The Fundamental Postulate - Princeton University Press
... The Hamiltonian’s constant value E can be identified with the system’s internal energy. Strictly speaking, for a system of 6N equations of motion, there exist 6N - 1 integrals of motion, which define a line in phase space along which the system must move. To a very large extent, however, these int ...
... The Hamiltonian’s constant value E can be identified with the system’s internal energy. Strictly speaking, for a system of 6N equations of motion, there exist 6N - 1 integrals of motion, which define a line in phase space along which the system must move. To a very large extent, however, these int ...
Adiabatic processes in the ionization of highly excited hydrogen atoms
... whereas it is compact in the finite dimensional approximating subspaces. We remark that our argumentation may also serve as a starting point to investigate the appearance of real avoided crossings, since there are physical constraints, for example the 'boundary' defined by the ground state energy of ...
... whereas it is compact in the finite dimensional approximating subspaces. We remark that our argumentation may also serve as a starting point to investigate the appearance of real avoided crossings, since there are physical constraints, for example the 'boundary' defined by the ground state energy of ...
Design of Strongly Modulating Pulses to Implement Precise Effective
... to date have the disadvantage that low power implies long duration. This not only introduces errors due to relaxation, or decoherence, but also allows significant evolution under the action of the internal Hamiltonian. In the past, this evolution was rarely of concern because there was little import ...
... to date have the disadvantage that low power implies long duration. This not only introduces errors due to relaxation, or decoherence, but also allows significant evolution under the action of the internal Hamiltonian. In the past, this evolution was rarely of concern because there was little import ...
Creation and manipulation of entanglement in spin chains far from
... with the effective anisotropy γ̃ = γJ1 /2J0 . This means that for resonant driving, the timedependent XY -model (1) can be mapped to the static XY -model (7) without Zeeman fields. In both cases, the entanglement generated between the two ending spins is maximal and controlled by the parameter γ and ...
... with the effective anisotropy γ̃ = γJ1 /2J0 . This means that for resonant driving, the timedependent XY -model (1) can be mapped to the static XY -model (7) without Zeeman fields. In both cases, the entanglement generated between the two ending spins is maximal and controlled by the parameter γ and ...
Quantum Phenomena in Condensed Phase
... lation and coherences in the representation of the density matrix, or “surface hopping” trajectories. We implement this on model condensed phase systems and compare results with a path-integral approach that is linearized in the forward and backward bath variables, developed and coded previously in ...
... lation and coherences in the representation of the density matrix, or “surface hopping” trajectories. We implement this on model condensed phase systems and compare results with a path-integral approach that is linearized in the forward and backward bath variables, developed and coded previously in ...
Quantum Nonequilibrium Dynamics: Transport, Entanglement, and Thermalization
... quantum spin chains are widely-used model systems to study quantum dynamics. In spite of their simple real-space structure, their quantum dynamics can show complex behaviors. Although not as perfect as three-dimensional cold gases in continuum space, one-dimensional quantum spin chains are also real ...
... quantum spin chains are widely-used model systems to study quantum dynamics. In spite of their simple real-space structure, their quantum dynamics can show complex behaviors. Although not as perfect as three-dimensional cold gases in continuum space, one-dimensional quantum spin chains are also real ...
Statistical Mechanics - Physics | Oregon State University
... functions. Finally, we used equations of state to describe experiments. These equations of state were either derived from experimental results (i.e. a good guess of the functions) or from models of the free energy. At the heart of all our derivations was the thermodynamic limit. Our systems have to ...
... functions. Finally, we used equations of state to describe experiments. These equations of state were either derived from experimental results (i.e. a good guess of the functions) or from models of the free energy. At the heart of all our derivations was the thermodynamic limit. Our systems have to ...
Geometric entanglement in topologically ordered states
... section 2. After this, we deal in section 3 with the toric code model. Since this is the simplest model displaying non-trivial TO, we spend quite some time explaining many of its properties, as well as derivations of the GE of spins and blocks both for the square and honeycomb lattices. In section 4 ...
... section 2. After this, we deal in section 3 with the toric code model. Since this is the simplest model displaying non-trivial TO, we spend quite some time explaining many of its properties, as well as derivations of the GE of spins and blocks both for the square and honeycomb lattices. In section 4 ...
Chapter 3. Transitions Between Electronic States
... Ψ1 and Ψ2 by making a good guess at the interaction operator, P1 → 2, that perturbs the initial state wave function Ψ1 and makes it “look like” the wavefunction of the final state Ψ2. Knowledge of and Ψ1, Ψ2 and P1 → 2 allows the computation of the rate of transition between the two states by compu ...
... Ψ1 and Ψ2 by making a good guess at the interaction operator, P1 → 2, that perturbs the initial state wave function Ψ1 and makes it “look like” the wavefunction of the final state Ψ2. Knowledge of and Ψ1, Ψ2 and P1 → 2 allows the computation of the rate of transition between the two states by compu ...
Introduction to the thermodynamic Bethe ansatz
... [4] who applied it to the Bose gas with delta function interaction, also known as the Lieb-Liniger model [5]. It was quickly adapted to lattice integrable models such as the Heisenberg spin chain [6, 7, 8] and Hubbard model [9, 10].1 The TBA can be used to compute the free energy of integrable fiel ...
... [4] who applied it to the Bose gas with delta function interaction, also known as the Lieb-Liniger model [5]. It was quickly adapted to lattice integrable models such as the Heisenberg spin chain [6, 7, 8] and Hubbard model [9, 10].1 The TBA can be used to compute the free energy of integrable fiel ...
Introduction to the Bethe Ansatz II
... opposite sign. Therefore, the physical properties are very different, and the state |F i now has the highest energy. Our immediate goals are to find the exact ground state |Ai of HA , to investigate how the state |Ai gradually transforms to the state |F i in the presence of a magnetic field of incre ...
... opposite sign. Therefore, the physical properties are very different, and the state |F i now has the highest energy. Our immediate goals are to find the exact ground state |Ai of HA , to investigate how the state |Ai gradually transforms to the state |F i in the presence of a magnetic field of incre ...
Collisional properties of ultracold potassium
... Fermi sea, in contrast to the highly correlated Fermi sea often encountered in condensed matter, nuclear, and atomic physics @7#. Indeed, identical fermionic neutral atoms, when trapped in a unique spin state, hardly interact at all at the microkelvin temperatures encountered in contemporary magneti ...
... Fermi sea, in contrast to the highly correlated Fermi sea often encountered in condensed matter, nuclear, and atomic physics @7#. Indeed, identical fermionic neutral atoms, when trapped in a unique spin state, hardly interact at all at the microkelvin temperatures encountered in contemporary magneti ...