Related Experiment Video
Updated: Feb 8, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
9.7K
Masking Quantum Information is Impossible
Kavan Modi1, Arun Kumar Pati2, Aditi Sen De2
1School of Physics and Astronomy, Monash University, Victoria 3800, Australia.
Physical Review Letters
|June 23, 2018
Summary
Quantum information masking, where quantum information is hidden in correlations, is not possible for all quantum states. This finding impacts quantum bit commitment and has implications for quantum communication.
Area of Science:
- Quantum Information Science
- Quantum Communication Theory
Background:
- Classical information can be masked in composite systems, existing only in correlations.
- Quantum information's analogous masking in subsystems is explored.
Purpose of the Study:
- To investigate whether quantum information can be masked in quantum correlations.
- To determine the general possibility of quantum information masking.
Main Methods:
- Analysis of quantum information encoding in composite quantum states.
- Examination of information accessibility in reduced quantum subsystems.
Main Results:
- Quantum information masking is demonstrated to be impossible for arbitrary quantum states.
- Masking is shown to be possible only for restricted sets of nonorthogonal quantum states.
Conclusions:
- The general impossibility of quantum information masking suggests quantum qubit commitment is not feasible.
- Findings have potential applications in quantum secret sharing and communication protocols.
Related Concept Videos
02:43Quantum Numbers
51.9K
It is said that the energy of an electron in an atom is quantized; that is, it can be equal only to certain specific values and can jump from one energy level to another but not transition smoothly or stay between these levels.
51.9K
02:45The Quantum-Mechanical Model of an Atom
59.2K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
59.2K
01:19Masking and Demasking Agents
3.6K
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
3.6K
01:30Administering Oxygen by Mask
2.5K
Administering Oxygen by Mask
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
Administering oxygen by mask is a common nursing intervention that provides supplemental oxygen to patients with respiratory distress or chronic lung conditions. This procedure involves delivering oxygen at a specified rate through a face mask connected to an oxygen source.
Equipment
The equipment necessary for this procedure includes:
2.5K
01:26Oxygen Delivering System I: Nasal Cannula and Face Mask
1.7K
The human body requires oxygen to function, and when the natural process of respiration is hindered, external devices, including the following, are needed to help deliver this vital gas.
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
Nasal Cannula
A nasal cannula is a lightweight tube split at one end into two prongs and placed in the nostrils. It is typically used to deliver low to medium levels of oxygen.
Suggested flow rate: The suggested flow rate for a nasal cannula typically ranges between 1 and 6 L/min.
Oxygen percentage setting:...
1.7K
01:16Oxygen Delivering System II: Venturi Mask and Transtracheal Oxygen
2.4K
Oxygen therapy is a pivotal aspect of medical care, particularly for patients with respiratory ailments. Two prominent oxygen-delivering systems include the Venturi mask and the transtracheal oxygen catheter.
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
Venturi Mask
The Venturi mask, named after the Venturi effect, is designed to deliver precise oxygen concentrations. It consists of a large tube with an oxygen inlet that narrows down, causing a pressure drop that pulls air in through adjustable side ports. The mask is a lightweight,...
2.4K