Related Experiment Video
Updated: Sep 6, 2025
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
9.1K
Correlation in Catalysts Enables Arbitrary Manipulation of Quantum Coherence
Ryuji Takagi1, Naoto Shiraishi2
1Nanyang Quantum Hub, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore.
Physical Review Letters
|July 1, 2022
Summary
Correlated catalysts enable arbitrary power in manipulating quantum coherence, a key quantum resource. This discovery reveals new embezzlement-like phenomena and advances quantum thermodynamics.
Area of Science:
- Quantum Information Science
- Quantum Thermodynamics
- Quantum Resource Theory
Background:
- Catalysts are ancillary quantum states that assist transformations without being consumed.
- Understanding catalyst-enhanced manipulation is crucial for quantifying quantum resource limits.
Purpose of the Study:
- To investigate the impact of correlations among multiple catalysts on quantum state transformations.
- To explore the potential for arbitrary power in quantum coherence manipulation using correlated catalysts.
Main Methods:
- Proving that any state transformation can be achieved with arbitrarily small error using covariant operations and correlated catalysts.
- Extending the analysis to general resource theories to identify conditions for catalyst-assisted transformations.
Main Results:
- Demonstrating that correlations among catalysts grant arbitrary power in manipulating quantum coherence.
- Identifying a novel embezzlement-like phenomenon attributed to correlations within catalysts.
- Establishing conditions for feasible transformations assisted by correlated catalysts in general resource theories.
Conclusions:
- Correlated catalysts offer a powerful new mechanism for quantum resource manipulation.
- This work provides a comprehensive overview of correlation's role in catalysts and advances quantum thermodynamics characterization.
- The findings have implications for understanding and optimizing the use of quantum resources.
Related Concept Videos
01:182D NMR: Overview of Heteronuclear Correlation Techniques
294
Heteronuclear correlation spectroscopy is an analytical technique that investigates the coupling between different types of nuclei, often a proton and an X-nucleus, such as carbon-13 or nitrogen-15. This method is commonly used in nuclear magnetic resonance (NMR) spectroscopy to gain insights into complex chemical compounds' structural and compositional aspects. A typical heteronuclear correlation spectrum displays X-nucleus chemical shifts on one axis and a proton spectrum on the other...
294
02:50Catalysis
27.5K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
27.5K
01:27¹H NMR: Long-Range Coupling
1.9K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
1.9K
01:58Cooperative Allosteric Transitions
8.0K
Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
8.0K
01:13Introduction to Mechanisms of Enzyme Catalysis
8.7K
For many years, scientists thought that enzyme-substrate binding took place in a simple "lock-and-key" fashion. This model stated that the enzyme and substrate fit together perfectly in one instantaneous step. However, current research supports a more refined view scientists call induced fit. The induced-fit model expands upon the lock-and-key model by describing a more dynamic interaction between enzyme and substrate. As the enzyme and substrate come together, their interaction causes...
8.7K
01:04¹³C NMR: ¹H–¹³C Decoupling
1.2K
The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
1.2K