Related Experiment Video
Updated: Apr 5, 2026
10:42
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
Published on: May 3, 2019
7.5K
Quantum Time Crystal Clock and Its Performance
Ludmila Viotti1, Marcus Huber2,3, Rosario Fazio1,4
1The Abdus Salam International Center for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy.
Physical Review Letters
|April 3, 2026
Summary
Quantum time crystals function as genuine quantum clocks. Their performance is enhanced by the spontaneous breaking of time-translation symmetry, offering new insights into thermodynamic efficiency.
Area of Science:
- Theoretical Physics
- Condensed Matter Theory
- Quantum Mechanics
Background:
- Understanding time is central to theoretical physics, with ongoing research into minimal models of stochastic and quantum clocks.
- Existing quantum clock designs face challenges in complexity, energy consumption, and thermodynamic efficiency.
- Time crystals, a novel phase of matter exhibiting equilibrium oscillations, have recently been experimentally observed.
Purpose of the Study:
- To investigate the potential of time crystals as quantum clocks.
- To evaluate the thermodynamic performance of time crystals when used as timekeeping devices.
Main Methods:
- Theoretical analysis of quantum time crystals.
- Assessment of clock performance based on thermodynamic principles.
- Exploration of symmetry breaking in quantum systems.
Main Results:
- Quantum time crystals are confirmed to be genuine quantum clocks.
- The performance of these quantum clocks is significantly enhanced.
- This enhancement is attributed to the spontaneous breaking of time-translation symmetry.
Conclusions:
- Time crystals represent a viable and efficient platform for quantum timekeeping.
- The study provides a new perspective on the thermodynamic implications of symmetry breaking in quantum devices.
- This research opens avenues for developing advanced, thermodynamically efficient quantum clocks.
Related Concept Videos
01:06Physical Pendulum
3.0K
When a rigid body is hanging freely from a fixed pivot point and is displaced, it oscillates similar to a simple pendulum and is known as a physical pendulum. The period and angular frequency of a physical pendulum are obtained by using the small-angle approximation and drawing parallels with a spring-mass system. The small-angle approximation (sinθ=θ) is valid up to about 14°.
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it...
When dealing with complicated systems, the mass moment of inertia is an important parameter, as it...
3.0K
02:45The Quantum-Mechanical Model of an Atom
61.8K
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.
61.8K
01:12Setting Time of Cement
970
The setting time of cement refers to the process of cement paste transitioning from a plastic state to a solid state. This process is crucial in construction as it dictates the timeframe for concrete placement, compaction, and finishing. The onset of this solidification is termed the initial set, indicating when the paste becomes unworkable. The final set is when the paste has solidified completely, and further handling or manipulation can no longer affect its shape. The cement strength is...
970
01:10Simple Pendulum
8.6K
A simple pendulum consists of a small diameter ball suspended from a string, which has negligible mass but is strong enough to not stretch. In our daily life, pendulums have many uses, such as in clocks, on a swing set, and on a sinker on a fishing line.
The period of a simple pendulum depends on two factors: its length and the acceleration due to gravity. The period is completely independent of any other factors, such as mass or maximum displacement. For small displacements, a pendulum is...
The period of a simple pendulum depends on two factors: its length and the acceleration due to gravity. The period is completely independent of any other factors, such as mass or maximum displacement. For small displacements, a pendulum is...
8.6K
01:13Speed of a Transverse Wave
4.3K
The speed of a wave depends on the characteristics of the medium. For example, in the case of a guitar, the strings vibrate to produce the sound. The speed of the waves on the strings and the wavelength determine the frequency of the sound produced. The strings on a guitar have different thicknesses but may be made of similar material. They have different linear densities, and the linear density is defined as the mass per length.
One of the key properties of any wave is the wave speed. Light...
One of the key properties of any wave is the wave speed. Light...
4.3K
01:07Effective Value of a Periodic Waveform
1.5K
The concept of effective value, the root mean square (RMS) value, is crucial in understanding electrical circuits and power delivery. This idea emerges from the necessity to measure the effectiveness of a voltage or current source in supplying power to a resistive load.
The effective value of a periodic current represents the direct current (DC) that conveys the same average power to a resistor as the periodic current itself. This concept is crucial when assessing AC circuits. To determine the...
The effective value of a periodic current represents the direct current (DC) that conveys the same average power to a resistor as the periodic current itself. This concept is crucial when assessing AC circuits. To determine the...
1.5K