Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Temperature and Thermal Equilibrium01:11

Temperature and Thermal Equilibrium

6.6K
Heat and temperature are essential concepts for everyone every day. The study of heat and temperature is part of an area of physics known as thermodynamics. It is not always easy to distinguish heat and temperature.
The concept of temperature has evolved from the common concepts of hot and cold. The scientific definition of temperature explains more than just our sense of hot and cold. Temperature is operationally defined as the quantity measured with a thermometer. Furthermore, temperature is...
6.6K
Effects of Temperature on Free Energy02:11

Effects of Temperature on Free Energy

25.5K
The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or the other depending upon the temperature of the substance in question. Likewise, some chemical reactions can also exhibit temperature-dependent spontaneities. To illustrate this concept, the equation relating free energy change to the enthalpy and entropy changes for the process is considered:
25.5K
Atomic Spectroscopy: Effects of Temperature01:27

Atomic Spectroscopy: Effects of Temperature

325
Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
325
Thermodynamic Systems01:06

Thermodynamic Systems

5.1K
A thermodynamic system is a set of objects whose thermodynamic properties are of interest. The system is considered to be embedded in its surroundings or the environment. The system and its environment can exchange heat and do work on each other through a boundary that separates them. However, the immediate surroundings of the system interact with it directly and therefore have a much stronger influence on its behavior and properties.
Consider an example of  tea boiling in a kettle. The...
5.1K
Le Chatelier's Principle: Changing Temperature02:19

Le Chatelier's Principle: Changing Temperature

29.6K
Consistent with the law of mass action, an equilibrium stressed by a change in concentration will shift to re-establish equilibrium without any change in the value of the equilibrium constant, K. When an equilibrium shifts in response to a temperature change, however, it is re-established with a different relative composition that exhibits a different value for the equilibrium constant.
To understand this phenomenon, consider the elementary reaction:
29.6K
Temperature Dependence on Reaction Rate02:55

Temperature Dependence on Reaction Rate

81.5K
The Collision Theory
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...
81.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Revisiting crossed-correlated baths in open quantum systems simulated by HEOM or T-TEDOPA.

The Journal of chemical physics·2026
Same author

Accurate, Full-Dimensional Computations of Thousands of Complex Vibrational Eigenstates with Tree Tensor Network States.

The journal of physical chemistry letters·2026
Same author

A Coupled-Trajectory Strategy for Decoherence, Frustrated Hops and Internal Consistency in Surface Hopping.

Journal of chemical theory and computation·2026
Same author

Algorithms and software for open quantum system dynamics.

The Journal of chemical physics·2025
Same author

Roadmap for Molecular Benchmarks in Nonadiabatic Dynamics.

The journal of physical chemistry. A·2025
Same author

Wavepacket and reduced-density approaches for high-dimensional quantum dynamics: Application to the nonlinear spectroscopy of asymmetrical light-harvesting building blocks.

The Journal of chemical physics·2025
Same journal

A data-driven modeling study on the accurate identification of Doppler-free saturated absorption spectra in diatomic tellurium (130Te2).

The Journal of chemical physics·2026
Same journal

Anharmonic phonons via quantum thermal bath simulations.

The Journal of chemical physics·2026
Same journal

Quantum simulation of alignment dependent differential cross sections in co-propagating molecular beams at cold collision energies.

The Journal of chemical physics·2026
Same journal

Non-additive ion effects on the coil-globule equilibrium of a generic polymer in aqueous salt solutions.

The Journal of chemical physics·2026
Same journal

Insights into the unexpected small reduction of the temperature of maximum density of water by lithium chloride addition.

The Journal of chemical physics·2026
Same journal

Optical frequency comb double-resonance spectroscopy of the 9030-9175 cm-1 states of ethylene.

The Journal of chemical physics·2026
See all related articles

Related Experiment Video

Updated: Jun 23, 2025

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

534

Managing temperature in open quantum systems strongly coupled with structured environments.

Brieuc Le Dé1, Amine Jaouadi2, Etienne Mangaud3

  • 1Institut des Nanosciences de Paris, Sorbonne Université, CNRS, F-75005 Paris, France.

The Journal of Chemical Physics
|June 24, 2024
PubMed
Summary
This summary is machine-generated.

This study compares environmental modeling for quantum systems. The Thermalized Time Evolving Density Operator with Orthogonal Polynomials Algorithm (T-TEDOPA) and hierarchical equations of motion (HEOM) are effective for simulating quantum dynamics at various temperatures.

More Related Videos

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.6K
Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.2K

Related Experiment Videos

Last Updated: Jun 23, 2025

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
05:30

Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit

Published on: September 8, 2023

534
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

9.6K
Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.2K

Area of Science:

  • Quantum mechanics
  • Open quantum systems
  • Computational physics

Background:

  • Simulating non-perturbative, non-Markovian open quantum systems is computationally demanding, especially at extreme temperatures.
  • Accurate modeling of the environment is crucial for understanding quantum dynamics.

Purpose of the Study:

  • To compare different environmental modeling techniques for open quantum systems.
  • To assess the effectiveness of the Thermalized Time Evolving Density Operator with Orthogonal Polynomials Algorithm (T-TEDOPA) and hierarchical equations of motion (HEOM) for simulating quantum dynamics.

Main Methods:

  • Comparison of T-TEDOPA and HEOM formalisms.
  • Utilizing the Fourier transform of the bath correlation function (temperature-dependent spectral density).
  • Employing rational decomposition and complex poles for spectral density representation.

Main Results:

  • Sampling the temperature-dependent spectral density is an effective environmental modeling strategy.
  • T-TEDOPA and HEOM demonstrate effectiveness in simulating quantum dynamics.
  • T-TEDOPA shows efficiency in simulating finite-temperature dynamics using various spectral density representations.

Conclusions:

  • The study highlights effective methods for simulating open quantum systems.
  • T-TEDOPA and HEOM provide robust frameworks for studying quantum dynamics across different temperature regimes.